Finding the Fourth Proportional to 22,113.09, 30,511.31 and 13,158.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,113.09 : 30,511.31 = 13,158.83 : x
2. Step 2: Convert to fraction form
   22,113.09/30,511.31 = 13,158.83/x
3. Step 3: Cross multiply
   22,113.09x = 30,511.31 × 13,158.83
4. Step 4: Simplify right side
   22,113.09x = 401,493,151.85
5. Step 5: Solve for x
   x = 401,493,151.85/22,113.09
6. Step 6: Final answer
   x = 18,156.36