Finding the Fourth Proportional to 52,616.64, 72,612.24 and 28,743.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,616.64 : 72,612.24 = 28,743.52 : x
2. Step 2: Convert to fraction form
   52,616.64/72,612.24 = 28,743.52/x
3. Step 3: Cross multiply
   52,616.64x = 72,612.24 × 28,743.52
4. Step 4: Simplify right side
   52,616.64x = 2,087,131,372.68
5. Step 5: Solve for x
   x = 2,087,131,372.68/52,616.64
6. Step 6: Final answer
   x = 39,666.76