Finding the Fourth Proportional to 22,311.84, 30,788.38 and 12,749.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,311.84 : 30,788.38 = 12,749.83 : x
2. Step 2: Convert to fraction form
   22,311.84/30,788.38 = 12,749.83/x
3. Step 3: Cross multiply
   22,311.84x = 30,788.38 × 12,749.83
4. Step 4: Simplify right side
   22,311.84x = 392,546,478.22
5. Step 5: Solve for x
   x = 392,546,478.22/22,311.84
6. Step 6: Final answer
   x = 17,593.64