Finding the Fourth Proportional to 16,116.40, 24,171.76 and 4,426.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,116.40 : 24,171.76 = 4,426.80 : x
2. Step 2: Convert to fraction form
   16,116.40/24,171.76 = 4,426.80/x
3. Step 3: Cross multiply
   16,116.40x = 24,171.76 × 4,426.80
4. Step 4: Simplify right side
   16,116.40x = 107,003,547.17
5. Step 5: Solve for x
   x = 107,003,547.17/16,116.40
6. Step 6: Final answer
   x = 6,639.42