Finding the Fourth Proportional to 71,334.52, 98,424.72 and 42,248.20

Step by Step Solution

1. Step 1: Write the proportion equation
   71,334.52 : 98,424.72 = 42,248.20 : x
2. Step 2: Convert to fraction form
   71,334.52/98,424.72 = 42,248.20/x
3. Step 3: Cross multiply
   71,334.52x = 98,424.72 × 42,248.20
4. Step 4: Simplify right side
   71,334.52x = 4,158,267,255.50
5. Step 5: Solve for x
   x = 4,158,267,255.50/71,334.52
6. Step 6: Final answer
   x = 58,292.50