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Finding the Fourth Proportional to 70,316.24, 105,474.20 and 17,729.84

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Solution

The fourth proportional to 70,316.24, 105,474.20 and 17,729.84 is: 26,594.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,316.24 : 105,474.20 = 17,729.84 : x
  2. Step 2: Convert to fraction form
    70,316.24/105,474.20 = 17,729.84/x
  3. Step 3: Cross multiply
    70,316.24x = 105,474.20 × 17,729.84
  4. Step 4: Simplify right side
    70,316.24x = 1,870,040,690.13
  5. Step 5: Solve for x
    x = 1,870,040,690.13/70,316.24
  6. Step 6: Final answer
    x = 26,594.72

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