Finding the Fourth Proportional to 111,687.34, 154,129.72 and 60,700.07

Step by Step Solution

1. Step 1: Write the proportion equation
   111,687.34 : 154,129.72 = 60,700.07 : x
2. Step 2: Convert to fraction form
   111,687.34/154,129.72 = 60,700.07/x
3. Step 3: Cross multiply
   111,687.34x = 154,129.72 × 60,700.07
4. Step 4: Simplify right side
   111,687.34x = 9,355,684,793.08
5. Step 5: Solve for x
   x = 9,355,684,793.08/111,687.34
6. Step 6: Final answer
   x = 83,766.74