Finding the Fourth Proportional to 22,350.60, 30,841.76 and 12,788.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,350.60 : 30,841.76 = 12,788.55 : x
2. Step 2: Convert to fraction form
   22,350.60/30,841.76 = 12,788.55/x
3. Step 3: Cross multiply
   22,350.60x = 30,841.76 × 12,788.55
4. Step 4: Simplify right side
   22,350.60x = 394,421,421.82
5. Step 5: Solve for x
   x = 394,421,421.82/22,350.60
6. Step 6: Final answer
   x = 17,647.02