Finding the Fourth Proportional to 71,078.50, 98,088.33 and 42,789.66

Step by Step Solution

1. Step 1: Write the proportion equation
   71,078.50 : 98,088.33 = 42,789.66 : x
2. Step 2: Convert to fraction form
   71,078.50/98,088.33 = 42,789.66/x
3. Step 3: Cross multiply
   71,078.50x = 98,088.33 × 42,789.66
4. Step 4: Simplify right side
   71,078.50x = 4,197,166,290.67
5. Step 5: Solve for x
   x = 4,197,166,290.67/71,078.50
6. Step 6: Final answer
   x = 59,049.73