Finding the Fourth Proportional to 111,580.32, 153,981.68 and 63,830.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,580.32 : 153,981.68 = 63,830.72 : x
2. Step 2: Convert to fraction form
   111,580.32/153,981.68 = 63,830.72/x
3. Step 3: Cross multiply
   111,580.32x = 153,981.68 × 63,830.72
4. Step 4: Simplify right side
   111,580.32x = 9,828,761,501.21
5. Step 5: Solve for x
   x = 9,828,761,501.21/111,580.32
6. Step 6: Final answer
   x = 88,086.87