Finding the Fourth Proportional to 22,144.32, 30,548.34 and 13,188.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,144.32 : 30,548.34 = 13,188.96 : x
2. Step 2: Convert to fraction form
   22,144.32/30,548.34 = 13,188.96/x
3. Step 3: Cross multiply
   22,144.32x = 30,548.34 × 13,188.96
4. Step 4: Simplify right side
   22,144.32x = 402,900,834.33
5. Step 5: Solve for x
   x = 402,900,834.33/22,144.32
6. Step 6: Final answer
   x = 18,194.32