Finding the Fourth Proportional to 52,802.78, 72,865.98 and 28,929.24

Step by Step Solution

1. Step 1: Write the proportion equation
   52,802.78 : 72,865.98 = 28,929.24 : x
2. Step 2: Convert to fraction form
   52,802.78/72,865.98 = 28,929.24/x
3. Step 3: Cross multiply
   52,802.78x = 72,865.98 × 28,929.24
4. Step 4: Simplify right side
   52,802.78x = 2,107,957,423.26
5. Step 5: Solve for x
   x = 2,107,957,423.26/52,802.78
6. Step 6: Final answer
   x = 39,921.34