Finding the Fourth Proportional to 13,081.65, 19,622.03 and 5,686.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.65 : 19,622.03 = 5,686.10 : x
2. Step 2: Convert to fraction form
   13,081.65/19,622.03 = 5,686.10/x
3. Step 3: Cross multiply
   13,081.65x = 19,622.03 × 5,686.10
4. Step 4: Simplify right side
   13,081.65x = 111,572,771.82
5. Step 5: Solve for x
   x = 111,572,771.82/13,081.65
6. Step 6: Final answer
   x = 8,528.95