Finding the Fourth Proportional to 25,629.89, 38,445.99 and 7,859.25

Step by Step Solution

1. Step 1: Write the proportion equation
   25,629.89 : 38,445.99 = 7,859.25 : x
2. Step 2: Convert to fraction form
   25,629.89/38,445.99 = 7,859.25/x
3. Step 3: Cross multiply
   25,629.89x = 38,445.99 × 7,859.25
4. Step 4: Simplify right side
   25,629.89x = 302,156,415.38
5. Step 5: Solve for x
   x = 302,156,415.38/25,629.89
6. Step 6: Final answer
   x = 11,789.22