Finding the Fourth Proportional to 13,080.19, 19,618.20 and 5,682.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,080.19 : 19,618.20 = 5,682.67 : x
2. Step 2: Convert to fraction form
   13,080.19/19,618.20 = 5,682.67/x
3. Step 3: Cross multiply
   13,080.19x = 19,618.20 × 5,682.67
4. Step 4: Simplify right side
   13,080.19x = 111,483,756.59
5. Step 5: Solve for x
   x = 111,483,756.59/13,080.19
6. Step 6: Final answer
   x = 8,523.10