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Finding the Fourth Proportional to 22,695.66, 31,319.66 and 12,623.72

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Solution

The fourth proportional to 22,695.66, 31,319.66 and 12,623.72 is: 17,420.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.66 : 31,319.66 = 12,623.72 : x
  2. Step 2: Convert to fraction form
    22,695.66/31,319.66 = 12,623.72/x
  3. Step 3: Cross multiply
    22,695.66x = 31,319.66 × 12,623.72
  4. Step 4: Simplify right side
    22,695.66x = 395,370,493.30
  5. Step 5: Solve for x
    x = 395,370,493.30/22,695.66
  6. Step 6: Final answer
    x = 17,420.53

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