Finding the Fourth Proportional to 10,613.84, 15,920.49 and 5,071.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,613.84 : 15,920.49 = 5,071.10 : x
2. Step 2: Convert to fraction form
   10,613.84/15,920.49 = 5,071.10/x
3. Step 3: Cross multiply
   10,613.84x = 15,920.49 × 5,071.10
4. Step 4: Simplify right side
   10,613.84x = 80,734,396.84
5. Step 5: Solve for x
   x = 80,734,396.84/10,613.84
6. Step 6: Final answer
   x = 7,606.52