Finding the Fourth Proportional to 91,910.76, 137,875.72 and 25,350.90

Step by Step Solution

1. Step 1: Write the proportion equation
   91,910.76 : 137,875.72 = 25,350.90 : x
2. Step 2: Convert to fraction form
   91,910.76/137,875.72 = 25,350.90/x
3. Step 3: Cross multiply
   91,910.76x = 137,875.72 × 25,350.90
4. Step 4: Simplify right side
   91,910.76x = 3,495,273,653.53
5. Step 5: Solve for x
   x = 3,495,273,653.53/91,910.76
6. Step 6: Final answer
   x = 38,028.99