Finding the Fourth Proportional to 58,731.30, 81,049.78 and 31,874.04

Step by Step Solution

1. Step 1: Write the proportion equation
   58,731.30 : 81,049.78 = 31,874.04 : x
2. Step 2: Convert to fraction form
   58,731.30/81,049.78 = 31,874.04/x
3. Step 3: Cross multiply
   58,731.30x = 81,049.78 × 31,874.04
4. Step 4: Simplify right side
   58,731.30x = 2,583,383,929.71
5. Step 5: Solve for x
   x = 2,583,383,929.71/58,731.30
6. Step 6: Final answer
   x = 43,986.49