Finding the Fourth Proportional to 23,608.98, 32,581.80 and 12,999.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,608.98 : 32,581.80 = 12,999.24 : x
2. Step 2: Convert to fraction form
   23,608.98/32,581.80 = 12,999.24/x
3. Step 3: Cross multiply
   23,608.98x = 32,581.80 × 12,999.24
4. Step 4: Simplify right side
   23,608.98x = 423,538,637.83
5. Step 5: Solve for x
   x = 423,538,637.83/23,608.98
6. Step 6: Final answer
   x = 17,939.73