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Finding the Fourth Proportional to 10,339,978.60, 15,516,966.30 and 4,657,277.80

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Solution

The fourth proportional to 10,339,978.60, 15,516,966.30 and 4,657,277.80 is: 6,989,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339,978.60 : 15,516,966.30 = 4,657,277.80 : x
  2. Step 2: Convert to fraction form
    10,339,978.60/15,516,966.30 = 4,657,277.80/x
  3. Step 3: Cross multiply
    10,339,978.60x = 15,516,966.30 × 4,657,277.80
  4. Step 4: Simplify right side
    10,339,978.60x = 72,266,822,672,338.14
  5. Step 5: Solve for x
    x = 72,266,822,672,338.14/10,339,978.60
  6. Step 6: Final answer
    x = 6,989,068.88

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