Finding the Fourth Proportional to 111,573.18, 153,965.52 and 63,831.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,573.18 : 153,965.52 = 63,831.78 : x
2. Step 2: Convert to fraction form
   111,573.18/153,965.52 = 63,831.78/x
3. Step 3: Cross multiply
   111,573.18x = 153,965.52 × 63,831.78
4. Step 4: Simplify right side
   111,573.18x = 9,827,893,200.23
5. Step 5: Solve for x
   x = 9,827,893,200.23/111,573.18
6. Step 6: Final answer
   x = 88,084.73