Finding the Fourth Proportional to 10,906.87, 15,052.18 and 7,327.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,906.87 : 15,052.18 = 7,327.78 : x
2. Step 2: Convert to fraction form
   10,906.87/15,052.18 = 7,327.78/x
3. Step 3: Cross multiply
   10,906.87x = 15,052.18 × 7,327.78
4. Step 4: Simplify right side
   10,906.87x = 110,299,042.52
5. Step 5: Solve for x
   x = 110,299,042.52/10,906.87
6. Step 6: Final answer
   x = 10,112.81