Finding the Fourth Proportional to 68,200.56, 94,116.72 and 39,911.76

Step by Step Solution

1. Step 1: Write the proportion equation
   68,200.56 : 94,116.72 = 39,911.76 : x
2. Step 2: Convert to fraction form
   68,200.56/94,116.72 = 39,911.76/x
3. Step 3: Cross multiply
   68,200.56x = 94,116.72 × 39,911.76
4. Step 4: Simplify right side
   68,200.56x = 3,756,363,940.63
5. Step 5: Solve for x
   x = 3,756,363,940.63/68,200.56
6. Step 6: Final answer
   x = 55,078.20