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Finding the Fourth Proportional to 12,224.71, 18,328.07 and 3,899.94

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Solution

The fourth proportional to 12,224.71, 18,328.07 and 3,899.94 is: 5,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.71 : 18,328.07 = 3,899.94 : x
  2. Step 2: Convert to fraction form
    12,224.71/18,328.07 = 3,899.94/x
  3. Step 3: Cross multiply
    12,224.71x = 18,328.07 × 3,899.94
  4. Step 4: Simplify right side
    12,224.71x = 71,478,314.34
  5. Step 5: Solve for x
    x = 71,478,314.34/12,224.71
  6. Step 6: Final answer
    x = 5,847.03

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