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Finding the Fourth Proportional to 13,601.86, 20,402.88 and 3,742.18

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Solution

The fourth proportional to 13,601.86, 20,402.88 and 3,742.18 is: 5,613.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.86 : 20,402.88 = 3,742.18 : x
  2. Step 2: Convert to fraction form
    13,601.86/20,402.88 = 3,742.18/x
  3. Step 3: Cross multiply
    13,601.86x = 20,402.88 × 3,742.18
  4. Step 4: Simplify right side
    13,601.86x = 76,351,249.48
  5. Step 5: Solve for x
    x = 76,351,249.48/13,601.86
  6. Step 6: Final answer
    x = 5,613.29

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