Finding the Fourth Proportional to 30,667.12, 45,990.96 and 13,132.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,667.12 : 45,990.96 = 13,132.24 : x
2. Step 2: Convert to fraction form
   30,667.12/45,990.96 = 13,132.24/x
3. Step 3: Cross multiply
   30,667.12x = 45,990.96 × 13,132.24
4. Step 4: Simplify right side
   30,667.12x = 603,964,324.55
5. Step 5: Solve for x
   x = 603,964,324.55/30,667.12
6. Step 6: Final answer
   x = 19,694.20