Finding the Fourth Proportional to 31,500.72, 43,477.29 and 18,081.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,500.72 : 43,477.29 = 18,081.05 : x
2. Step 2: Convert to fraction form
   31,500.72/43,477.29 = 18,081.05/x
3. Step 3: Cross multiply
   31,500.72x = 43,477.29 × 18,081.05
4. Step 4: Simplify right side
   31,500.72x = 786,114,836.97
5. Step 5: Solve for x
   x = 786,114,836.97/31,500.72
6. Step 6: Final answer
   x = 24,955.46