Finding the Fourth Proportional to 108,729.10, 150,055.20 and 60,335.57

Step by Step Solution

1. Step 1: Write the proportion equation
   108,729.10 : 150,055.20 = 60,335.57 : x
2. Step 2: Convert to fraction form
   108,729.10/150,055.20 = 60,335.57/x
3. Step 3: Cross multiply
   108,729.10x = 150,055.20 × 60,335.57
4. Step 4: Simplify right side
   108,729.10x = 9,053,665,933.05
5. Step 5: Solve for x
   x = 9,053,665,933.05/108,729.10
6. Step 6: Final answer
   x = 83,268.11