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Finding the Fourth Proportional to 17,742.75, 26,614.14 and 5,430.75

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Solution

The fourth proportional to 17,742.75, 26,614.14 and 5,430.75 is: 8,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,742.75 : 26,614.14 = 5,430.75 : x
  2. Step 2: Convert to fraction form
    17,742.75/26,614.14 = 5,430.75/x
  3. Step 3: Cross multiply
    17,742.75x = 26,614.14 × 5,430.75
  4. Step 4: Simplify right side
    17,742.75x = 144,534,740.81
  5. Step 5: Solve for x
    x = 144,534,740.81/17,742.75
  6. Step 6: Final answer
    x = 8,146.13

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