Finding the Fourth Proportional to 91,931.68, 137,894.76 and 25,375.81

Step by Step Solution

1. Step 1: Write the proportion equation
   91,931.68 : 137,894.76 = 25,375.81 : x
2. Step 2: Convert to fraction form
   91,931.68/137,894.76 = 25,375.81/x
3. Step 3: Cross multiply
   91,931.68x = 137,894.76 × 25,375.81
4. Step 4: Simplify right side
   91,931.68x = 3,499,191,229.76
5. Step 5: Solve for x
   x = 3,499,191,229.76/91,931.68
6. Step 6: Final answer
   x = 38,062.95