Finding the Fourth Proportional to 52,390.62, 72,296.76 and 28,517.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,390.62 : 72,296.76 = 28,517.49 : x
2. Step 2: Convert to fraction form
   52,390.62/72,296.76 = 28,517.49/x
3. Step 3: Cross multiply
   52,390.62x = 72,296.76 × 28,517.49
4. Step 4: Simplify right side
   52,390.62x = 2,061,722,130.33
5. Step 5: Solve for x
   x = 2,061,722,130.33/52,390.62
6. Step 6: Final answer
   x = 39,352.89