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Finding the Fourth Proportional to 58,799.08, 80,905.62 and 57,399.40

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Solution

The fourth proportional to 58,799.08, 80,905.62 and 57,399.40 is: 78,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,799.08 : 80,905.62 = 57,399.40 : x
  2. Step 2: Convert to fraction form
    58,799.08/80,905.62 = 57,399.40/x
  3. Step 3: Cross multiply
    58,799.08x = 80,905.62 × 57,399.40
  4. Step 4: Simplify right side
    58,799.08x = 4,643,934,044.63
  5. Step 5: Solve for x
    x = 4,643,934,044.63/58,799.08
  6. Step 6: Final answer
    x = 78,979.71

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