Finding the Fourth Proportional to 17,667.42, 24,355.34 and 12,345.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,667.42 : 24,355.34 = 12,345.72 : x
2. Step 2: Convert to fraction form
   17,667.42/24,355.34 = 12,345.72/x
3. Step 3: Cross multiply
   17,667.42x = 24,355.34 × 12,345.72
4. Step 4: Simplify right side
   17,667.42x = 300,684,208.14
5. Step 5: Solve for x
   x = 300,684,208.14/17,667.42
6. Step 6: Final answer
   x = 17,019.14