Finding the Fourth Proportional to 52,529.48, 72,490.55 and 28,656.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,529.48 : 72,490.55 = 28,656.15 : x
2. Step 2: Convert to fraction form
   52,529.48/72,490.55 = 28,656.15/x
3. Step 3: Cross multiply
   52,529.48x = 72,490.55 × 28,656.15
4. Step 4: Simplify right side
   52,529.48x = 2,077,299,931.10
5. Step 5: Solve for x
   x = 2,077,299,931.10/52,529.48
6. Step 6: Final answer
   x = 39,545.42