Finding the Fourth Proportional to 52,805.88, 72,872.10 and 28,933.46

Step by Step Solution

1. Step 1: Write the proportion equation
   52,805.88 : 72,872.10 = 28,933.46 : x
2. Step 2: Convert to fraction form
   52,805.88/72,872.10 = 28,933.46/x
3. Step 3: Cross multiply
   52,805.88x = 72,872.10 × 28,933.46
4. Step 4: Simplify right side
   52,805.88x = 2,108,441,990.47
5. Step 5: Solve for x
   x = 2,108,441,990.47/52,805.88
6. Step 6: Final answer
   x = 39,928.17