Finding the Fourth Proportional to 32,958, 49,443.21 and 13,238.10

Step by Step Solution

1. Step 1: Write the proportion equation
   32,958 : 49,443.21 = 13,238.10 : x
2. Step 2: Convert to fraction form
   32,958/49,443.21 = 13,238.10/x
3. Step 3: Cross multiply
   32,958x = 49,443.21 × 13,238.10
4. Step 4: Simplify right side
   32,958x = 654,534,158.30
5. Step 5: Solve for x
   x = 654,534,158.30/32,958
6. Step 6: Final answer
   x = 19,859.64