Finding the Fourth Proportional to 23,658, 32,640.60 and 14,586.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,658 : 32,640.60 = 14,586.72 : x
2. Step 2: Convert to fraction form
   23,658/32,640.60 = 14,586.72/x
3. Step 3: Cross multiply
   23,658x = 32,640.60 × 14,586.72
4. Step 4: Simplify right side
   23,658x = 476,119,292.83
5. Step 5: Solve for x
   x = 476,119,292.83/23,658
6. Step 6: Final answer
   x = 20,125.09