Finding the Fourth Proportional to 331,456.86, 497,094.48 and 91,513.35

Step by Step Solution

1. Step 1: Write the proportion equation
   331,456.86 : 497,094.48 = 91,513.35 : x
2. Step 2: Convert to fraction form
   331,456.86/497,094.48 = 91,513.35/x
3. Step 3: Cross multiply
   331,456.86x = 497,094.48 × 91,513.35
4. Step 4: Simplify right side
   331,456.86x = 45,490,781,131.31
5. Step 5: Solve for x
   x = 45,490,781,131.31/331,456.86
6. Step 6: Final answer
   x = 137,244.95