Finding the Fourth Proportional to 23,600.23, 32,568.06 and 12,989.63

Step by Step Solution

1. Step 1: Write the proportion equation
   23,600.23 : 32,568.06 = 12,989.63 : x
2. Step 2: Convert to fraction form
   23,600.23/32,568.06 = 12,989.63/x
3. Step 3: Cross multiply
   23,600.23x = 32,568.06 × 12,989.63
4. Step 4: Simplify right side
   23,600.23x = 423,047,049.22
5. Step 5: Solve for x
   x = 423,047,049.22/23,600.23
6. Step 6: Final answer
   x = 17,925.55