Finding the Fourth Proportional to 111,516.05, 153,891.77 and 60,528.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,516.05 : 153,891.77 = 60,528.78 : x
2. Step 2: Convert to fraction form
   111,516.05/153,891.77 = 60,528.78/x
3. Step 3: Cross multiply
   111,516.05x = 153,891.77 × 60,528.78
4. Step 4: Simplify right side
   111,516.05x = 9,314,880,787.50
5. Step 5: Solve for x
   x = 9,314,880,787.50/111,516.05
6. Step 6: Final answer
   x = 83,529.51