Finding the Fourth Proportional to 52,520.24, 72,478.83 and 28,647.11

Step by Step Solution

1. Step 1: Write the proportion equation
   52,520.24 : 72,478.83 = 28,647.11 : x
2. Step 2: Convert to fraction form
   52,520.24/72,478.83 = 28,647.11/x
3. Step 3: Cross multiply
   52,520.24x = 72,478.83 × 28,647.11
4. Step 4: Simplify right side
   52,520.24x = 2,076,308,653.29
5. Step 5: Solve for x
   x = 2,076,308,653.29/52,520.24
6. Step 6: Final answer
   x = 39,533.50