Finding the Fourth Proportional to 22,336.42, 33,460.82 and 12,956.74

Step by Step Solution

1. Step 1: Write the proportion equation
   22,336.42 : 33,460.82 = 12,956.74 : x
2. Step 2: Convert to fraction form
   22,336.42/33,460.82 = 12,956.74/x
3. Step 3: Cross multiply
   22,336.42x = 33,460.82 × 12,956.74
4. Step 4: Simplify right side
   22,336.42x = 433,543,144.93
5. Step 5: Solve for x
   x = 433,543,144.93/22,336.42
6. Step 6: Final answer
   x = 19,409.70