Finding the Fourth Proportional to 108,025.98, 149,258.55 and 77,751.42

Step by Step Solution

1. Step 1: Write the proportion equation
   108,025.98 : 149,258.55 = 77,751.42 : x
2. Step 2: Convert to fraction form
   108,025.98/149,258.55 = 77,751.42/x
3. Step 3: Cross multiply
   108,025.98x = 149,258.55 × 77,751.42
4. Step 4: Simplify right side
   108,025.98x = 11,605,064,209.64
5. Step 5: Solve for x
   x = 11,605,064,209.64/108,025.98
6. Step 6: Final answer
   x = 107,428.46