Finding the Fourth Proportional to 52,469.28, 72,407.79 and 28,596.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,469.28 : 72,407.79 = 28,596.15 : x
2. Step 2: Convert to fraction form
   52,469.28/72,407.79 = 28,596.15/x
3. Step 3: Cross multiply
   52,469.28x = 72,407.79 × 28,596.15
4. Step 4: Simplify right side
   52,469.28x = 2,070,584,024.01
5. Step 5: Solve for x
   x = 2,070,584,024.01/52,469.28
6. Step 6: Final answer
   x = 39,462.79