Finding the Fourth Proportional to 92,982.72, 139,470.42 and 39,652.72

Step by Step Solution

1. Step 1: Write the proportion equation
   92,982.72 : 139,470.42 = 39,652.72 : x
2. Step 2: Convert to fraction form
   92,982.72/139,470.42 = 39,652.72/x
3. Step 3: Cross multiply
   92,982.72x = 139,470.42 × 39,652.72
4. Step 4: Simplify right side
   92,982.72x = 5,530,381,512.54
5. Step 5: Solve for x
   x = 5,530,381,512.54/92,982.72
6. Step 6: Final answer
   x = 59,477.52