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Finding the Fourth Proportional to 40,198.56, 60,231.28 and 13,888.68

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Solution

The fourth proportional to 40,198.56, 60,231.28 and 13,888.68 is: 20,810.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,198.56 : 60,231.28 = 13,888.68 : x
  2. Step 2: Convert to fraction form
    40,198.56/60,231.28 = 13,888.68/x
  3. Step 3: Cross multiply
    40,198.56x = 60,231.28 × 13,888.68
  4. Step 4: Simplify right side
    40,198.56x = 836,532,973.91
  5. Step 5: Solve for x
    x = 836,532,973.91/40,198.56
  6. Step 6: Final answer
    x = 20,810.02

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