Finding the Fourth Proportional to 111,144.16, 153,379.20 and 60,846.40

Step by Step Solution

1. Step 1: Write the proportion equation
   111,144.16 : 153,379.20 = 60,846.40 : x
2. Step 2: Convert to fraction form
   111,144.16/153,379.20 = 60,846.40/x
3. Step 3: Cross multiply
   111,144.16x = 153,379.20 × 60,846.40
4. Step 4: Simplify right side
   111,144.16x = 9,332,572,154.88
5. Step 5: Solve for x
   x = 9,332,572,154.88/111,144.16
6. Step 6: Final answer
   x = 83,968.17