Finding the Fourth Proportional to 52,520.02, 72,479.39 and 28,648.01

Step by Step Solution

1. Step 1: Write the proportion equation
   52,520.02 : 72,479.39 = 28,648.01 : x
2. Step 2: Convert to fraction form
   52,520.02/72,479.39 = 28,648.01/x
3. Step 3: Cross multiply
   52,520.02x = 72,479.39 × 28,648.01
4. Step 4: Simplify right side
   52,520.02x = 2,076,390,327.47
5. Step 5: Solve for x
   x = 2,076,390,327.47/52,520.02
6. Step 6: Final answer
   x = 39,535.22