Finding the Fourth Proportional to 23,440.64, 32,348.09 and 12,830.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,440.64 : 32,348.09 = 12,830.28 : x
2. Step 2: Convert to fraction form
   23,440.64/32,348.09 = 12,830.28/x
3. Step 3: Cross multiply
   23,440.64x = 32,348.09 × 12,830.28
4. Step 4: Simplify right side
   23,440.64x = 415,035,144.89
5. Step 5: Solve for x
   x = 415,035,144.89/23,440.64
6. Step 6: Final answer
   x = 17,705.79