Finding the Fourth Proportional to 13,162.85, 18,164.43 and 7,194.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,162.85 : 18,164.43 = 7,194.56 : x
2. Step 2: Convert to fraction form
   13,162.85/18,164.43 = 7,194.56/x
3. Step 3: Cross multiply
   13,162.85x = 18,164.43 × 7,194.56
4. Step 4: Simplify right side
   13,162.85x = 130,685,081.50
5. Step 5: Solve for x
   x = 130,685,081.50/13,162.85
6. Step 6: Final answer
   x = 9,928.33