Finding the Fourth Proportional to 13,080.68, 19,609.05 and 5,682.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,080.68 : 19,609.05 = 5,682.47 : x
2. Step 2: Convert to fraction form
   13,080.68/19,609.05 = 5,682.47/x
3. Step 3: Cross multiply
   13,080.68x = 19,609.05 × 5,682.47
4. Step 4: Simplify right side
   13,080.68x = 111,427,740.31
5. Step 5: Solve for x
   x = 111,427,740.31/13,080.68
6. Step 6: Final answer
   x = 8,518.50