Finding the Fourth Proportional to 52,520.84, 72,479.73 and 28,648.37

Step by Step Solution

1. Step 1: Write the proportion equation
   52,520.84 : 72,479.73 = 28,648.37 : x
2. Step 2: Convert to fraction form
   52,520.84/72,479.73 = 28,648.37/x
3. Step 3: Cross multiply
   52,520.84x = 72,479.73 × 28,648.37
4. Step 4: Simplify right side
   52,520.84x = 2,076,425,760.14
5. Step 5: Solve for x
   x = 2,076,425,760.14/52,520.84
6. Step 6: Final answer
   x = 39,535.28