Finding the Fourth Proportional to 52,520.62, 72,477.84 and 28,647.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,520.62 : 72,477.84 = 28,647.49 : x
2. Step 2: Convert to fraction form
   52,520.62/72,477.84 = 28,647.49/x
3. Step 3: Cross multiply
   52,520.62x = 72,477.84 × 28,647.49
4. Step 4: Simplify right side
   52,520.62x = 2,076,308,196.62
5. Step 5: Solve for x
   x = 2,076,308,196.62/52,520.62
6. Step 6: Final answer
   x = 39,533.20