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Finding the Fourth Proportional to 115,572.80, 173,359.20 and 56,446.40

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Solution

The fourth proportional to 115,572.80, 173,359.20 and 56,446.40 is: 84,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,572.80 : 173,359.20 = 56,446.40 : x
  2. Step 2: Convert to fraction form
    115,572.80/173,359.20 = 56,446.40/x
  3. Step 3: Cross multiply
    115,572.80x = 173,359.20 × 56,446.40
  4. Step 4: Simplify right side
    115,572.80x = 9,785,502,746.88
  5. Step 5: Solve for x
    x = 9,785,502,746.88/115,572.80
  6. Step 6: Final answer
    x = 84,669.60

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