Finding the Fourth Proportional to 16,216.32, 22,380.69 and 9,504.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216.32 : 22,380.69 = 9,504.60 : x
2. Step 2: Convert to fraction form
   16,216.32/22,380.69 = 9,504.60/x
3. Step 3: Cross multiply
   16,216.32x = 22,380.69 × 9,504.60
4. Step 4: Simplify right side
   16,216.32x = 212,719,506.17
5. Step 5: Solve for x
   x = 212,719,506.17/16,216.32
6. Step 6: Final answer
   x = 13,117.62