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Finding the Fourth Proportional to 43,499.28, 65,258.64 and 13,918.89

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Solution

The fourth proportional to 43,499.28, 65,258.64 and 13,918.89 is: 20,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,499.28 : 65,258.64 = 13,918.89 : x
  2. Step 2: Convert to fraction form
    43,499.28/65,258.64 = 13,918.89/x
  3. Step 3: Cross multiply
    43,499.28x = 65,258.64 × 13,918.89
  4. Step 4: Simplify right side
    43,499.28x = 908,327,831.71
  5. Step 5: Solve for x
    x = 908,327,831.71/43,499.28
  6. Step 6: Final answer
    x = 20,881.45

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