Finding the Fourth Proportional to 111,020.50, 153,208.29 and 60,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,020.50 : 153,208.29 = 60,719.50 : x
2. Step 2: Convert to fraction form
   111,020.50/153,208.29 = 60,719.50/x
3. Step 3: Cross multiply
   111,020.50x = 153,208.29 × 60,719.50
4. Step 4: Simplify right side
   111,020.50x = 9,302,730,764.66
5. Step 5: Solve for x
   x = 9,302,730,764.66/111,020.50
6. Step 6: Final answer
   x = 83,792.91