Finding the Fourth Proportional to 13,078.56, 19,617.84 and 5,682.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078.56 : 19,617.84 = 5,682.72 : x
2. Step 2: Convert to fraction form
   13,078.56/19,617.84 = 5,682.72/x
3. Step 3: Cross multiply
   13,078.56x = 19,617.84 × 5,682.72
4. Step 4: Simplify right side
   13,078.56x = 111,482,691.72
5. Step 5: Solve for x
   x = 111,482,691.72/13,078.56
6. Step 6: Final answer
   x = 8,524.08