Finding the Fourth Proportional to 72,689.90, 109,049.49 and 25,941.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,689.90 : 109,049.49 = 25,941.56 : x
2. Step 2: Convert to fraction form
   72,689.90/109,049.49 = 25,941.56/x
3. Step 3: Cross multiply
   72,689.90x = 109,049.49 × 25,941.56
4. Step 4: Simplify right side
   72,689.90x = 2,828,913,342.56
5. Step 5: Solve for x
   x = 2,828,913,342.56/72,689.90
6. Step 6: Final answer
   x = 38,917.56