Finding the Fourth Proportional to 52,772.31, 72,825.78 and 28,900.44

Step by Step Solution

1. Step 1: Write the proportion equation
   52,772.31 : 72,825.78 = 28,900.44 : x
2. Step 2: Convert to fraction form
   52,772.31/72,825.78 = 28,900.44/x
3. Step 3: Cross multiply
   52,772.31x = 72,825.78 × 28,900.44
4. Step 4: Simplify right side
   52,772.31x = 2,104,697,085.34
5. Step 5: Solve for x
   x = 2,104,697,085.34/52,772.31
6. Step 6: Final answer
   x = 39,882.60