Finding the Fourth Proportional to 22,168.58, 30,565.42 and 13,770.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,168.58 : 30,565.42 = 13,770.50 : x
2. Step 2: Convert to fraction form
   22,168.58/30,565.42 = 13,770.50/x
3. Step 3: Cross multiply
   22,168.58x = 30,565.42 × 13,770.50
4. Step 4: Simplify right side
   22,168.58x = 420,900,928.86
5. Step 5: Solve for x
   x = 420,900,928.86/22,168.58
6. Step 6: Final answer
   x = 18,986.38