Finding the Fourth Proportional to 52,725.54, 72,762.42 and 28,852.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,725.54 : 72,762.42 = 28,852.20 : x
2. Step 2: Convert to fraction form
   52,725.54/72,762.42 = 28,852.20/x
3. Step 3: Cross multiply
   52,725.54x = 72,762.42 × 28,852.20
4. Step 4: Simplify right side
   52,725.54x = 2,099,355,894.32
5. Step 5: Solve for x
   x = 2,099,355,894.32/52,725.54
6. Step 6: Final answer
   x = 39,816.68