Finding the Fourth Proportional to 111,022.47, 153,213.26 and 60,724.71

Step by Step Solution

1. Step 1: Write the proportion equation
   111,022.47 : 153,213.26 = 60,724.71 : x
2. Step 2: Convert to fraction form
   111,022.47/153,213.26 = 60,724.71/x
3. Step 3: Cross multiply
   111,022.47x = 153,213.26 × 60,724.71
4. Step 4: Simplify right side
   111,022.47x = 9,303,830,478.03
5. Step 5: Solve for x
   x = 9,303,830,478.03/111,022.47
6. Step 6: Final answer
   x = 83,801.33