Finding the Fourth Proportional to 10,713.91, 16,081.25 and 5,171.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,713.91 : 16,081.25 = 5,171.16 : x
2. Step 2: Convert to fraction form
   10,713.91/16,081.25 = 5,171.16/x
3. Step 3: Cross multiply
   10,713.91x = 16,081.25 × 5,171.16
4. Step 4: Simplify right side
   10,713.91x = 83,158,716.75
5. Step 5: Solve for x
   x = 83,158,716.75/10,713.91
6. Step 6: Final answer
   x = 7,761.75