Finding the Fourth Proportional to 91,612.89, 138,043.46 and 75,337.53

Step by Step Solution

1. Step 1: Write the proportion equation
   91,612.89 : 138,043.46 = 75,337.53 : x
2. Step 2: Convert to fraction form
   91,612.89/138,043.46 = 75,337.53/x
3. Step 3: Cross multiply
   91,612.89x = 138,043.46 × 75,337.53
4. Step 4: Simplify right side
   91,612.89x = 10,399,852,932.37
5. Step 5: Solve for x
   x = 10,399,852,932.37/91,612.89
6. Step 6: Final answer
   x = 113,519.54