Finding the Fourth Proportional to 13,079.48, 19,615.72 and 5,682.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,079.48 : 19,615.72 = 5,682.18 : x
2. Step 2: Convert to fraction form
   13,079.48/19,615.72 = 5,682.18/x
3. Step 3: Cross multiply
   13,079.48x = 19,615.72 × 5,682.18
4. Step 4: Simplify right side
   13,079.48x = 111,459,956.37
5. Step 5: Solve for x
   x = 111,459,956.37/13,079.48
6. Step 6: Final answer
   x = 8,521.75