Finding the Fourth Proportional to 12,155.82, 18,267.93 and 7,226.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,155.82 : 18,267.93 = 7,226.34 : x
2. Step 2: Convert to fraction form
   12,155.82/18,267.93 = 7,226.34/x
3. Step 3: Cross multiply
   12,155.82x = 18,267.93 × 7,226.34
4. Step 4: Simplify right side
   12,155.82x = 132,010,273.28
5. Step 5: Solve for x
   x = 132,010,273.28/12,155.82
6. Step 6: Final answer
   x = 10,859.84