Finding the Fourth Proportional to 10,967.76, 16,443.96 and 5,417.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,967.76 : 16,443.96 = 5,417.64 : x
2. Step 2: Convert to fraction form
   10,967.76/16,443.96 = 5,417.64/x
3. Step 3: Cross multiply
   10,967.76x = 16,443.96 × 5,417.64
4. Step 4: Simplify right side
   10,967.76x = 89,087,455.45
5. Step 5: Solve for x
   x = 89,087,455.45/10,967.76
6. Step 6: Final answer
   x = 8,122.67