Finding the Fourth Proportional to 52,401.68, 72,315.24 and 28,529.04

Step by Step Solution

1. Step 1: Write the proportion equation
   52,401.68 : 72,315.24 = 28,529.04 : x
2. Step 2: Convert to fraction form
   52,401.68/72,315.24 = 28,529.04/x
3. Step 3: Cross multiply
   52,401.68x = 72,315.24 × 28,529.04
4. Step 4: Simplify right side
   52,401.68x = 2,063,084,374.57
5. Step 5: Solve for x
   x = 2,063,084,374.57/52,401.68
6. Step 6: Final answer
   x = 39,370.58