Finding the Fourth Proportional to 111,604.59, 153,937.89 and 71,300.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111,604.59 : 153,937.89 = 71,300.52 : x
2. Step 2: Convert to fraction form
   111,604.59/153,937.89 = 71,300.52/x
3. Step 3: Cross multiply
   111,604.59x = 153,937.89 × 71,300.52
4. Step 4: Simplify right side
   111,604.59x = 10,975,851,604.70
5. Step 5: Solve for x
   x = 10,975,851,604.70/111,604.59
6. Step 6: Final answer
   x = 98,345.88