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Finding the Fourth Proportional to 19,707.86, 29,568.78 and 12,303.74

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Solution

The fourth proportional to 19,707.86, 29,568.78 and 12,303.74 is: 18,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.86 : 29,568.78 = 12,303.74 : x
  2. Step 2: Convert to fraction form
    19,707.86/29,568.78 = 12,303.74/x
  3. Step 3: Cross multiply
    19,707.86x = 29,568.78 × 12,303.74
  4. Step 4: Simplify right side
    19,707.86x = 363,806,581.24
  5. Step 5: Solve for x
    x = 363,806,581.24/19,707.86
  6. Step 6: Final answer
    x = 18,459.97

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