Finding the Fourth Proportional to 22,034.37, 30,406.19 and 12,838.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,034.37 : 30,406.19 = 12,838.72 : x
2. Step 2: Convert to fraction form
   22,034.37/30,406.19 = 12,838.72/x
3. Step 3: Cross multiply
   22,034.37x = 30,406.19 × 12,838.72
4. Step 4: Simplify right side
   22,034.37x = 390,376,559.68
5. Step 5: Solve for x
   x = 390,376,559.68/22,034.37
6. Step 6: Final answer
   x = 17,716.71