Finding the Fourth Proportional to 111,662.40, 154,107.42 and 63,931.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,662.40 : 154,107.42 = 63,931.08 : x
2. Step 2: Convert to fraction form
   111,662.40/154,107.42 = 63,931.08/x
3. Step 3: Cross multiply
   111,662.40x = 154,107.42 × 63,931.08
4. Step 4: Simplify right side
   111,662.40x = 9,852,253,796.61
5. Step 5: Solve for x
   x = 9,852,253,796.61/111,662.40
6. Step 6: Final answer
   x = 88,232.51