Finding the Fourth Proportional to 23,118.57, 31,892.27 and 13,682.61

Step by Step Solution

1. Step 1: Write the proportion equation
   23,118.57 : 31,892.27 = 13,682.61 : x
2. Step 2: Convert to fraction form
   23,118.57/31,892.27 = 13,682.61/x
3. Step 3: Cross multiply
   23,118.57x = 31,892.27 × 13,682.61
4. Step 4: Simplify right side
   23,118.57x = 436,369,424.01
5. Step 5: Solve for x
   x = 436,369,424.01/23,118.57
6. Step 6: Final answer
   x = 18,875.28