Finding the Fourth Proportional to 16,957.59, 23,401.48 and 9,405.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,957.59 : 23,401.48 = 9,405.08 : x
2. Step 2: Convert to fraction form
   16,957.59/23,401.48 = 9,405.08/x
3. Step 3: Cross multiply
   16,957.59x = 23,401.48 × 9,405.08
4. Step 4: Simplify right side
   16,957.59x = 220,092,774.02
5. Step 5: Solve for x
   x = 220,092,774.02/16,957.59
6. Step 6: Final answer
   x = 12,979.01