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Finding the Fourth Proportional to 19,731.13, 29,607.63 and 8,043.45

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Solution

The fourth proportional to 19,731.13, 29,607.63 and 8,043.45 is: 12,069.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.13 : 29,607.63 = 8,043.45 : x
  2. Step 2: Convert to fraction form
    19,731.13/29,607.63 = 8,043.45/x
  3. Step 3: Cross multiply
    19,731.13x = 29,607.63 × 8,043.45
  4. Step 4: Simplify right side
    19,731.13x = 238,147,491.52
  5. Step 5: Solve for x
    x = 238,147,491.52/19,731.13
  6. Step 6: Final answer
    x = 12,069.63

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