Finding the Fourth Proportional to 12,292.01, 18,414.89 and 7,279.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,292.01 : 18,414.89 = 7,279.55 : x
2. Step 2: Convert to fraction form
   12,292.01/18,414.89 = 7,279.55/x
3. Step 3: Cross multiply
   12,292.01x = 18,414.89 × 7,279.55
4. Step 4: Simplify right side
   12,292.01x = 134,052,076.10
5. Step 5: Solve for x
   x = 134,052,076.10/12,292.01
6. Step 6: Final answer
   x = 10,905.63