Finding the Fourth Proportional to 52,763.02, 72,812.73 and 28,564

Step by Step Solution

1. Step 1: Write the proportion equation
   52,763.02 : 72,812.73 = 28,564 : x
2. Step 2: Convert to fraction form
   52,763.02/72,812.73 = 28,564/x
3. Step 3: Cross multiply
   52,763.02x = 72,812.73 × 28,564
4. Step 4: Simplify right side
   52,763.02x = 2,079,822,819.72
5. Step 5: Solve for x
   x = 2,079,822,819.72/52,763.02
6. Step 6: Final answer
   x = 39,418.19