Finding the Fourth Proportional to 22,981.52, 31,714.50 and 12,909.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,981.52 : 31,714.50 = 12,909.96 : x
2. Step 2: Convert to fraction form
   22,981.52/31,714.50 = 12,909.96/x
3. Step 3: Cross multiply
   22,981.52x = 31,714.50 × 12,909.96
4. Step 4: Simplify right side
   22,981.52x = 409,432,926.42
5. Step 5: Solve for x
   x = 409,432,926.42/22,981.52
6. Step 6: Final answer
   x = 17,815.75