Finding the Fourth Proportional to 72,443.10, 108,685.17 and 25,700.70

Step by Step Solution

1. Step 1: Write the proportion equation
   72,443.10 : 108,685.17 = 25,700.70 : x
2. Step 2: Convert to fraction form
   72,443.10/108,685.17 = 25,700.70/x
3. Step 3: Cross multiply
   72,443.10x = 108,685.17 × 25,700.70
4. Step 4: Simplify right side
   72,443.10x = 2,793,284,948.62
5. Step 5: Solve for x
   x = 2,793,284,948.62/72,443.10
6. Step 6: Final answer
   x = 38,558.33