Finding the Fourth Proportional to 23,601.82, 32,569.27 and 12,989.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,601.82 : 32,569.27 = 12,989.40 : x
2. Step 2: Convert to fraction form
   23,601.82/32,569.27 = 12,989.40/x
3. Step 3: Cross multiply
   23,601.82x = 32,569.27 × 12,989.40
4. Step 4: Simplify right side
   23,601.82x = 423,055,275.74
5. Step 5: Solve for x
   x = 423,055,275.74/23,601.82
6. Step 6: Final answer
   x = 17,924.69