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Finding the Fourth Proportional to 72,568.22, 108,824.37 and 28,189.13

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Solution

The fourth proportional to 72,568.22, 108,824.37 and 28,189.13 is: 42,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568.22 : 108,824.37 = 28,189.13 : x
  2. Step 2: Convert to fraction form
    72,568.22/108,824.37 = 28,189.13/x
  3. Step 3: Cross multiply
    72,568.22x = 108,824.37 × 28,189.13
  4. Step 4: Simplify right side
    72,568.22x = 3,067,663,768.98
  5. Step 5: Solve for x
    x = 3,067,663,768.98/72,568.22
  6. Step 6: Final answer
    x = 42,272.83

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