Finding the Fourth Proportional to 91,442.88, 126,182.88 and 57,908.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,442.88 : 126,182.88 = 57,908.16 : x
2. Step 2: Convert to fraction form
   91,442.88/126,182.88 = 57,908.16/x
3. Step 3: Cross multiply
   91,442.88x = 126,182.88 × 57,908.16
4. Step 4: Simplify right side
   91,442.88x = 7,307,018,404.30
5. Step 5: Solve for x
   x = 7,307,018,404.30/91,442.88
6. Step 6: Final answer
   x = 79,908.01