Finding the Fourth Proportional to 91,597.02, 126,357.46 and 57,113.43

Step by Step Solution

1. Step 1: Write the proportion equation
   91,597.02 : 126,357.46 = 57,113.43 : x
2. Step 2: Convert to fraction form
   91,597.02/126,357.46 = 57,113.43/x
3. Step 3: Cross multiply
   91,597.02x = 126,357.46 × 57,113.43
4. Step 4: Simplify right side
   91,597.02x = 7,216,707,946.69
5. Step 5: Solve for x
   x = 7,216,707,946.69/91,597.02
6. Step 6: Final answer
   x = 78,787.58