Finding the Fourth Proportional to 52,645.89, 72,651.33 and 28,772.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,645.89 : 72,651.33 = 28,772.56 : x
2. Step 2: Convert to fraction form
   52,645.89/72,651.33 = 28,772.56/x
3. Step 3: Cross multiply
   52,645.89x = 72,651.33 × 28,772.56
4. Step 4: Simplify right side
   52,645.89x = 2,090,364,860.65
5. Step 5: Solve for x
   x = 2,090,364,860.65/52,645.89
6. Step 6: Final answer
   x = 39,706.14