Finding the Fourth Proportional to 25,278.84, 37,916.89 and 7,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,278.84 : 37,916.89 = 7,748.72 : x
2. Step 2: Convert to fraction form
   25,278.84/37,916.89 = 7,748.72/x
3. Step 3: Cross multiply
   25,278.84x = 37,916.89 × 7,748.72
4. Step 4: Simplify right side
   25,278.84x = 293,807,363.88
5. Step 5: Solve for x
   x = 293,807,363.88/25,278.84
6. Step 6: Final answer
   x = 11,622.66