Finding the Fourth Proportional to 22,171, 30,595.71 and 12,738.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,171 : 30,595.71 = 12,738.82 : x
2. Step 2: Convert to fraction form
   22,171/30,595.71 = 12,738.82/x
3. Step 3: Cross multiply
   22,171x = 30,595.71 × 12,738.82
4. Step 4: Simplify right side
   22,171x = 389,753,242.46
5. Step 5: Solve for x
   x = 389,753,242.46/22,171
6. Step 6: Final answer
   x = 17,579.42