Finding the Fourth Proportional to 10,626.69, 15,933.20 and 5,079.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,626.69 : 15,933.20 = 5,079.91 : x
2. Step 2: Convert to fraction form
   10,626.69/15,933.20 = 5,079.91/x
3. Step 3: Cross multiply
   10,626.69x = 15,933.20 × 5,079.91
4. Step 4: Simplify right side
   10,626.69x = 80,939,209.31
5. Step 5: Solve for x
   x = 80,939,209.31/10,626.69
6. Step 6: Final answer
   x = 7,616.60