Finding the Fourth Proportional to 10,917.72, 16,366.86 and 5,071.14

Step by Step Solution

1. Step 1: Write the proportion equation
   10,917.72 : 16,366.86 = 5,071.14 : x
2. Step 2: Convert to fraction form
   10,917.72/16,366.86 = 5,071.14/x
3. Step 3: Cross multiply
   10,917.72x = 16,366.86 × 5,071.14
4. Step 4: Simplify right side
   10,917.72x = 82,998,638.42
5. Step 5: Solve for x
   x = 82,998,638.42/10,917.72
6. Step 6: Final answer
   x = 7,602.20