Finding the Fourth Proportional to 52,672.74, 72,688.41 and 28,799.61

Step by Step Solution

1. Step 1: Write the proportion equation
   52,672.74 : 72,688.41 = 28,799.61 : x
2. Step 2: Convert to fraction form
   52,672.74/72,688.41 = 28,799.61/x
3. Step 3: Cross multiply
   52,672.74x = 72,688.41 × 28,799.61
4. Step 4: Simplify right side
   52,672.74x = 2,093,397,859.52
5. Step 5: Solve for x
   x = 2,093,397,859.52/52,672.74
6. Step 6: Final answer
   x = 39,743.48