Finding the Fourth Proportional to 10,610.88, 15,917.33 and 4,371.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,610.88 : 15,917.33 = 4,371.31 : x
2. Step 2: Convert to fraction form
   10,610.88/15,917.33 = 4,371.31/x
3. Step 3: Cross multiply
   10,610.88x = 15,917.33 × 4,371.31
4. Step 4: Simplify right side
   10,610.88x = 69,579,561.95
5. Step 5: Solve for x
   x = 69,579,561.95/10,610.88
6. Step 6: Final answer
   x = 6,557.38