Finding the Fourth Proportional to 11,146.56, 15,378.24 and 7,794.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,146.56 : 15,378.24 = 7,794.72 : x
2. Step 2: Convert to fraction form
   11,146.56/15,378.24 = 7,794.72/x
3. Step 3: Cross multiply
   11,146.56x = 15,378.24 × 7,794.72
4. Step 4: Simplify right side
   11,146.56x = 119,869,074.89
5. Step 5: Solve for x
   x = 119,869,074.89/11,146.56
6. Step 6: Final answer
   x = 10,753.91