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Finding the Fourth Proportional to 77,071.26, 106,356.72 and 43,078.80

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Solution

The fourth proportional to 77,071.26, 106,356.72 and 43,078.80 is: 59,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,071.26 : 106,356.72 = 43,078.80 : x
  2. Step 2: Convert to fraction form
    77,071.26/106,356.72 = 43,078.80/x
  3. Step 3: Cross multiply
    77,071.26x = 106,356.72 × 43,078.80
  4. Step 4: Simplify right side
    77,071.26x = 4,581,719,869.54
  5. Step 5: Solve for x
    x = 4,581,719,869.54/77,071.26
  6. Step 6: Final answer
    x = 59,447.84

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