Finding the Fourth Proportional to 10,912.55, 15,038.19 and 7,763.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,912.55 : 15,038.19 = 7,763.27 : x
2. Step 2: Convert to fraction form
   10,912.55/15,038.19 = 7,763.27/x
3. Step 3: Cross multiply
   10,912.55x = 15,038.19 × 7,763.27
4. Step 4: Simplify right side
   10,912.55x = 116,745,454.09
5. Step 5: Solve for x
   x = 116,745,454.09/10,912.55
6. Step 6: Final answer
   x = 10,698.28