Finding the Fourth Proportional to 331,410.15, 497,143.94 and 91,524.15

Step by Step Solution

1. Step 1: Write the proportion equation
   331,410.15 : 497,143.94 = 91,524.15 : x
2. Step 2: Convert to fraction form
   331,410.15/497,143.94 = 91,524.15/x
3. Step 3: Cross multiply
   331,410.15x = 497,143.94 × 91,524.15
4. Step 4: Simplify right side
   331,410.15x = 45,500,676,078.53
5. Step 5: Solve for x
   x = 45,500,676,078.53/331,410.15
6. Step 6: Final answer
   x = 137,294.15