Finding the Fourth Proportional to 23,509.58, 32,443.73 and 12,899.23

Step by Step Solution

1. Step 1: Write the proportion equation
   23,509.58 : 32,443.73 = 12,899.23 : x
2. Step 2: Convert to fraction form
   23,509.58/32,443.73 = 12,899.23/x
3. Step 3: Cross multiply
   23,509.58x = 32,443.73 × 12,899.23
4. Step 4: Simplify right side
   23,509.58x = 418,499,038.09
5. Step 5: Solve for x
   x = 418,499,038.09/23,509.58
6. Step 6: Final answer
   x = 17,801.22