Finding the Fourth Proportional to 16,479.75, 22,742.06 and 9,406.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,479.75 : 22,742.06 = 9,406.02 : x
2. Step 2: Convert to fraction form
   16,479.75/22,742.06 = 9,406.02/x
3. Step 3: Cross multiply
   16,479.75x = 22,742.06 × 9,406.02
4. Step 4: Simplify right side
   16,479.75x = 213,912,224.17
5. Step 5: Solve for x
   x = 213,912,224.17/16,479.75
6. Step 6: Final answer
   x = 12,980.31