Finding the Fourth Proportional to 71,271.55, 98,348.06 and 42,585.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,271.55 : 98,348.06 = 42,585.50 : x
2. Step 2: Convert to fraction form
   71,271.55/98,348.06 = 42,585.50/x
3. Step 3: Cross multiply
   71,271.55x = 98,348.06 × 42,585.50
4. Step 4: Simplify right side
   71,271.55x = 4,188,201,309.13
5. Step 5: Solve for x
   x = 4,188,201,309.13/71,271.55
6. Step 6: Final answer
   x = 58,764.00