Finding the Fourth Proportional to 13,080.18, 19,619.83 and 5,684.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,080.18 : 19,619.83 = 5,684.64 : x
2. Step 2: Convert to fraction form
   13,080.18/19,619.83 = 5,684.64/x
3. Step 3: Cross multiply
   13,080.18x = 19,619.83 × 5,684.64
4. Step 4: Simplify right side
   13,080.18x = 111,531,543.89
5. Step 5: Solve for x
   x = 111,531,543.89/13,080.18
6. Step 6: Final answer
   x = 8,526.76