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Finding the Fourth Proportional to 85,712.04, 128,568.08 and 29,568.24

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Solution

The fourth proportional to 85,712.04, 128,568.08 and 29,568.24 is: 44,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,712.04 : 128,568.08 = 29,568.24 : x
  2. Step 2: Convert to fraction form
    85,712.04/128,568.08 = 29,568.24/x
  3. Step 3: Cross multiply
    85,712.04x = 128,568.08 × 29,568.24
  4. Step 4: Simplify right side
    85,712.04x = 3,801,531,845.78
  5. Step 5: Solve for x
    x = 3,801,531,845.78/85,712.04
  6. Step 6: Final answer
    x = 44,352.37

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