Finding the Fourth Proportional to 58,707, 80,962.20 and 49,651.33

Step by Step Solution

1. Step 1: Write the proportion equation
   58,707 : 80,962.20 = 49,651.33 : x
2. Step 2: Convert to fraction form
   58,707/80,962.20 = 49,651.33/x
3. Step 3: Cross multiply
   58,707x = 80,962.20 × 49,651.33
4. Step 4: Simplify right side
   58,707x = 4,019,880,909.73
5. Step 5: Solve for x
   x = 4,019,880,909.73/58,707
6. Step 6: Final answer
   x = 68,473.62