Finding the Fourth Proportional to 22,667.50, 31,279.62 and 13,719.97

Step by Step Solution

1. Step 1: Write the proportion equation
   22,667.50 : 31,279.62 = 13,719.97 : x
2. Step 2: Convert to fraction form
   22,667.50/31,279.62 = 13,719.97/x
3. Step 3: Cross multiply
   22,667.50x = 31,279.62 × 13,719.97
4. Step 4: Simplify right side
   22,667.50x = 429,155,448.01
5. Step 5: Solve for x
   x = 429,155,448.01/22,667.50
6. Step 6: Final answer
   x = 18,932.63