Finding the Fourth Proportional to 10,616.31, 15,920.37 and 3,498.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,616.31 : 15,920.37 = 3,498.84 : x
2. Step 2: Convert to fraction form
   10,616.31/15,920.37 = 3,498.84/x
3. Step 3: Cross multiply
   10,616.31x = 15,920.37 × 3,498.84
4. Step 4: Simplify right side
   10,616.31x = 55,702,827.37
5. Step 5: Solve for x
   x = 55,702,827.37/10,616.31
6. Step 6: Final answer
   x = 5,246.91