Finding the Fourth Proportional to 111,601.18, 153,952.50 and 71,272.54

Step by Step Solution

1. Step 1: Write the proportion equation
   111,601.18 : 153,952.50 = 71,272.54 : x
2. Step 2: Convert to fraction form
   111,601.18/153,952.50 = 71,272.54/x
3. Step 3: Cross multiply
   111,601.18x = 153,952.50 × 71,272.54
4. Step 4: Simplify right side
   111,601.18x = 10,972,585,714.35
5. Step 5: Solve for x
   x = 10,972,585,714.35/111,601.18
6. Step 6: Final answer
   x = 98,319.62