Finding the Fourth Proportional to 22,112.34, 30,510.27 and 13,158.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,112.34 : 30,510.27 = 13,158.09 : x
2. Step 2: Convert to fraction form
   22,112.34/30,510.27 = 13,158.09/x
3. Step 3: Cross multiply
   22,112.34x = 30,510.27 × 13,158.09
4. Step 4: Simplify right side
   22,112.34x = 401,456,878.58
5. Step 5: Solve for x
   x = 401,456,878.58/22,112.34
6. Step 6: Final answer
   x = 18,155.33