Finding the Fourth Proportional to 111,696.03, 154,141.37 and 60,708.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,696.03 : 154,141.37 = 60,708.78 : x
2. Step 2: Convert to fraction form
   111,696.03/154,141.37 = 60,708.78/x
3. Step 3: Cross multiply
   111,696.03x = 154,141.37 × 60,708.78
4. Step 4: Simplify right side
   111,696.03x = 9,357,734,520.23
5. Step 5: Solve for x
   x = 9,357,734,520.23/111,696.03
6. Step 6: Final answer
   x = 83,778.58