Finding the Fourth Proportional to 22,287.52, 30,755.70 and 13,339.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,287.52 : 30,755.70 = 13,339.96 : x
2. Step 2: Convert to fraction form
   22,287.52/30,755.70 = 13,339.96/x
3. Step 3: Cross multiply
   22,287.52x = 30,755.70 × 13,339.96
4. Step 4: Simplify right side
   22,287.52x = 410,279,807.77
5. Step 5: Solve for x
   x = 410,279,807.77/22,287.52
6. Step 6: Final answer
   x = 18,408.50