Finding the Fourth Proportional to 16,680.05, 23,012.88 and 9,606.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,680.05 : 23,012.88 = 9,606.32 : x
2. Step 2: Convert to fraction form
   16,680.05/23,012.88 = 9,606.32/x
3. Step 3: Cross multiply
   16,680.05x = 23,012.88 × 9,606.32
4. Step 4: Simplify right side
   16,680.05x = 221,069,089.40
5. Step 5: Solve for x
   x = 221,069,089.40/16,680.05
6. Step 6: Final answer
   x = 13,253.50