Finding the Fourth Proportional to 91,634.48, 138,076.02 and 75,359.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,634.48 : 138,076.02 = 75,359.10 : x
2. Step 2: Convert to fraction form
   91,634.48/138,076.02 = 75,359.10/x
3. Step 3: Cross multiply
   91,634.48x = 138,076.02 × 75,359.10
4. Step 4: Simplify right side
   91,634.48x = 10,405,284,598.78
5. Step 5: Solve for x
   x = 10,405,284,598.78/91,634.48
6. Step 6: Final answer
   x = 113,552.07