Finding the Fourth Proportional to 111,079.50, 153,289.71 and 60,778.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,079.50 : 153,289.71 = 60,778.50 : x
2. Step 2: Convert to fraction form
   111,079.50/153,289.71 = 60,778.50/x
3. Step 3: Cross multiply
   111,079.50x = 153,289.71 × 60,778.50
4. Step 4: Simplify right side
   111,079.50x = 9,316,718,639.24
5. Step 5: Solve for x
   x = 9,316,718,639.24/111,079.50
6. Step 6: Final answer
   x = 83,874.33