Finding the Fourth Proportional to 13,081.08, 19,632.72 and 5,691.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.08 : 19,632.72 = 5,691.48 : x
2. Step 2: Convert to fraction form
   13,081.08/19,632.72 = 5,691.48/x
3. Step 3: Cross multiply
   13,081.08x = 19,632.72 × 5,691.48
4. Step 4: Simplify right side
   13,081.08x = 111,739,233.23
5. Step 5: Solve for x
   x = 111,739,233.23/13,081.08
6. Step 6: Final answer
   x = 8,542.05