Finding the Fourth Proportional to 10,616.88, 15,926.33 and 4,377.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,616.88 : 15,926.33 = 4,377.31 : x
2. Step 2: Convert to fraction form
   10,616.88/15,926.33 = 4,377.31/x
3. Step 3: Cross multiply
   10,616.88x = 15,926.33 × 4,377.31
4. Step 4: Simplify right side
   10,616.88x = 69,714,483.57
5. Step 5: Solve for x
   x = 69,714,483.57/10,616.88
6. Step 6: Final answer
   x = 6,566.38