Finding the Fourth Proportional to 53,152.80, 73,356.04 and 39,700.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,152.80 : 73,356.04 = 39,700.72 : x
2. Step 2: Convert to fraction form
   53,152.80/73,356.04 = 39,700.72/x
3. Step 3: Cross multiply
   53,152.80x = 73,356.04 × 39,700.72
4. Step 4: Simplify right side
   53,152.80x = 2,912,287,604.35
5. Step 5: Solve for x
   x = 2,912,287,604.35/53,152.80
6. Step 6: Final answer
   x = 54,790.86