Finding the Fourth Proportional to 16,407.57, 22,634.76 and 9,688.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,407.57 : 22,634.76 = 9,688.62 : x
2. Step 2: Convert to fraction form
   16,407.57/22,634.76 = 9,688.62/x
3. Step 3: Cross multiply
   16,407.57x = 22,634.76 × 9,688.62
4. Step 4: Simplify right side
   16,407.57x = 219,299,588.43
5. Step 5: Solve for x
   x = 219,299,588.43/16,407.57
6. Step 6: Final answer
   x = 13,365.76