Finding the Fourth Proportional to 111,578.32, 153,978.92 and 63,828.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,578.32 : 153,978.92 = 63,828.72 : x
2. Step 2: Convert to fraction form
   111,578.32/153,978.92 = 63,828.72/x
3. Step 3: Cross multiply
   111,578.32x = 153,978.92 × 63,828.72
4. Step 4: Simplify right side
   111,578.32x = 9,828,277,370.58
5. Step 5: Solve for x
   x = 9,828,277,370.58/111,578.32
6. Step 6: Final answer
   x = 88,084.11