Finding the Fourth Proportional to 25,109.78, 37,664.94 and 7,579.76

Step by Step Solution

1. Step 1: Write the proportion equation
   25,109.78 : 37,664.94 = 7,579.76 : x
2. Step 2: Convert to fraction form
   25,109.78/37,664.94 = 7,579.76/x
3. Step 3: Cross multiply
   25,109.78x = 37,664.94 × 7,579.76
4. Step 4: Simplify right side
   25,109.78x = 285,491,205.61
5. Step 5: Solve for x
   x = 285,491,205.61/25,109.78
6. Step 6: Final answer
   x = 11,369.72