Finding the Fourth Proportional to 10,919.16, 16,382.34 and 4,343.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,919.16 : 16,382.34 = 4,343.58 : x
2. Step 2: Convert to fraction form
   10,919.16/16,382.34 = 4,343.58/x
3. Step 3: Cross multiply
   10,919.16x = 16,382.34 × 4,343.58
4. Step 4: Simplify right side
   10,919.16x = 71,158,004.38
5. Step 5: Solve for x
   x = 71,158,004.38/10,919.16
6. Step 6: Final answer
   x = 6,516.80