Finding the Fourth Proportional to 25,392.89, 35,059.32 and 15,847.32

Step by Step Solution

1. Step 1: Write the proportion equation
   25,392.89 : 35,059.32 = 15,847.32 : x
2. Step 2: Convert to fraction form
   25,392.89/35,059.32 = 15,847.32/x
3. Step 3: Cross multiply
   25,392.89x = 35,059.32 × 15,847.32
4. Step 4: Simplify right side
   25,392.89x = 555,596,273.61
5. Step 5: Solve for x
   x = 555,596,273.61/25,392.89
6. Step 6: Final answer
   x = 21,879.99