Finding the Fourth Proportional to 22,667.04, 31,270.32 and 13,230

Step by Step Solution

1. Step 1: Write the proportion equation
   22,667.04 : 31,270.32 = 13,230 : x
2. Step 2: Convert to fraction form
   22,667.04/31,270.32 = 13,230/x
3. Step 3: Cross multiply
   22,667.04x = 31,270.32 × 13,230
4. Step 4: Simplify right side
   22,667.04x = 413,706,333.60
5. Step 5: Solve for x
   x = 413,706,333.60/22,667.04
6. Step 6: Final answer
   x = 18,251.45