Finding the Fourth Proportional to 111,777.10, 154,253.42 and 60,790.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111,777.10 : 154,253.42 = 60,790.32 : x
2. Step 2: Convert to fraction form
   111,777.10/154,253.42 = 60,790.32/x
3. Step 3: Cross multiply
   111,777.10x = 154,253.42 × 60,790.32
4. Step 4: Simplify right side
   111,777.10x = 9,377,114,762.89
5. Step 5: Solve for x
   x = 9,377,114,762.89/111,777.10
6. Step 6: Final answer
   x = 83,891.20