Finding the Fourth Proportional to 16,688.52, 23,032.98 and 9,619.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,688.52 : 23,032.98 = 9,619.05 : x
2. Step 2: Convert to fraction form
   16,688.52/23,032.98 = 9,619.05/x
3. Step 3: Cross multiply
   16,688.52x = 23,032.98 × 9,619.05
4. Step 4: Simplify right side
   16,688.52x = 221,555,386.27
5. Step 5: Solve for x
   x = 221,555,386.27/16,688.52
6. Step 6: Final answer
   x = 13,275.92