Finding the Fourth Proportional to 13,081.61, 19,618.96 and 5,684.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.61 : 19,618.96 = 5,684.34 : x
2. Step 2: Convert to fraction form
   13,081.61/19,618.96 = 5,684.34/x
3. Step 3: Cross multiply
   13,081.61x = 19,618.96 × 5,684.34
4. Step 4: Simplify right side
   13,081.61x = 111,520,839.09
5. Step 5: Solve for x
   x = 111,520,839.09/13,081.61
6. Step 6: Final answer
   x = 8,525.01