Finding the Fourth Proportional to 16,479.98, 22,742.16 and 9,406.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,479.98 : 22,742.16 = 9,406.52 : x
2. Step 2: Convert to fraction form
   16,479.98/22,742.16 = 9,406.52/x
3. Step 3: Cross multiply
   16,479.98x = 22,742.16 × 9,406.52
4. Step 4: Simplify right side
   16,479.98x = 213,924,582.88
5. Step 5: Solve for x
   x = 213,924,582.88/16,479.98
6. Step 6: Final answer
   x = 12,980.88