Finding the Fourth Proportional to 52,392.53, 72,298.76 and 28,517.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,392.53 : 72,298.76 = 28,517.78 : x
2. Step 2: Convert to fraction form
   52,392.53/72,298.76 = 28,517.78/x
3. Step 3: Cross multiply
   52,392.53x = 72,298.76 × 28,517.78
4. Step 4: Simplify right side
   52,392.53x = 2,061,800,383.99
5. Step 5: Solve for x
   x = 2,061,800,383.99/52,392.53
6. Step 6: Final answer
   x = 39,352.94