Finding the Fourth Proportional to 22,957.98, 31,682.48 and 12,887.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,957.98 : 31,682.48 = 12,887.16 : x
2. Step 2: Convert to fraction form
   22,957.98/31,682.48 = 12,887.16/x
3. Step 3: Cross multiply
   22,957.98x = 31,682.48 × 12,887.16
4. Step 4: Simplify right side
   22,957.98x = 408,297,124.52
5. Step 5: Solve for x
   x = 408,297,124.52/22,957.98
6. Step 6: Final answer
   x = 17,784.54