Finding the Fourth Proportional to 10,892.16, 16,339.32 and 4,322.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,892.16 : 16,339.32 = 4,322.88 : x
2. Step 2: Convert to fraction form
   10,892.16/16,339.32 = 4,322.88/x
3. Step 3: Cross multiply
   10,892.16x = 16,339.32 × 4,322.88
4. Step 4: Simplify right side
   10,892.16x = 70,632,919.64
5. Step 5: Solve for x
   x = 70,632,919.64/10,892.16
6. Step 6: Final answer
   x = 6,484.75