Finding the Fourth Proportional to 23,111.10, 31,893.39 and 12,500.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,111.10 : 31,893.39 = 12,500.82 : x
2. Step 2: Convert to fraction form
   23,111.10/31,893.39 = 12,500.82/x
3. Step 3: Cross multiply
   23,111.10x = 31,893.39 × 12,500.82
4. Step 4: Simplify right side
   23,111.10x = 398,693,527.58
5. Step 5: Solve for x
   x = 398,693,527.58/23,111.10
6. Step 6: Final answer
   x = 17,251.17