Finding the Fourth Proportional to 13,464.27, 18,590.72 and 8,166.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,464.27 : 18,590.72 = 8,166.29 : x
2. Step 2: Convert to fraction form
   13,464.27/18,590.72 = 8,166.29/x
3. Step 3: Cross multiply
   13,464.27x = 18,590.72 × 8,166.29
4. Step 4: Simplify right side
   13,464.27x = 151,817,077.04
5. Step 5: Solve for x
   x = 151,817,077.04/13,464.27
6. Step 6: Final answer
   x = 11,275.55