Finding the Fourth Proportional to 111,598.82, 153,989.07 and 71,348.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111,598.82 : 153,989.07 = 71,348.30 : x
2. Step 2: Convert to fraction form
   111,598.82/153,989.07 = 71,348.30/x
3. Step 3: Cross multiply
   111,598.82x = 153,989.07 × 71,348.30
4. Step 4: Simplify right side
   111,598.82x = 10,986,858,363.08
5. Step 5: Solve for x
   x = 10,986,858,363.08/111,598.82
6. Step 6: Final answer
   x = 98,449.59