Finding the Fourth Proportional to 52,402.50, 72,315.33 and 28,529.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,402.50 : 72,315.33 = 28,529.34 : x
2. Step 2: Convert to fraction form
   52,402.50/72,315.33 = 28,529.34/x
3. Step 3: Cross multiply
   52,402.50x = 72,315.33 × 28,529.34
4. Step 4: Simplify right side
   52,402.50x = 2,063,108,636.78
5. Step 5: Solve for x
   x = 2,063,108,636.78/52,402.50
6. Step 6: Final answer
   x = 39,370.42