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Finding the Fourth Proportional to 72,948.59, 109,422.77 and 28,544.18

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Solution

The fourth proportional to 72,948.59, 109,422.77 and 28,544.18 is: 42,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,948.59 : 109,422.77 = 28,544.18 : x
  2. Step 2: Convert to fraction form
    72,948.59/109,422.77 = 28,544.18/x
  3. Step 3: Cross multiply
    72,948.59x = 109,422.77 × 28,544.18
  4. Step 4: Simplify right side
    72,948.59x = 3,123,382,767.23
  5. Step 5: Solve for x
    x = 3,123,382,767.23/72,948.59
  6. Step 6: Final answer
    x = 42,816.22

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