Finding the Fourth Proportional to 10,705.91, 16,049.63 and 5,151.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,705.91 : 16,049.63 = 5,151.61 : x
2. Step 2: Convert to fraction form
   10,705.91/16,049.63 = 5,151.61/x
3. Step 3: Cross multiply
   10,705.91x = 16,049.63 × 5,151.61
4. Step 4: Simplify right side
   10,705.91x = 82,681,434.40
5. Step 5: Solve for x
   x = 82,681,434.40/10,705.91
6. Step 6: Final answer
   x = 7,722.97