Finding the Fourth Proportional to 111,573.43, 153,970.78 and 60,585.71

Step by Step Solution

1. Step 1: Write the proportion equation
   111,573.43 : 153,970.78 = 60,585.71 : x
2. Step 2: Convert to fraction form
   111,573.43/153,970.78 = 60,585.71/x
3. Step 3: Cross multiply
   111,573.43x = 153,970.78 × 60,585.71
4. Step 4: Simplify right side
   111,573.43x = 9,328,428,910.00
5. Step 5: Solve for x
   x = 9,328,428,910.00/111,573.43
6. Step 6: Final answer
   x = 83,607.98