Finding the Fourth Proportional to 12,919.52, 19,381.24 and 5,524

Step by Step Solution

1. Step 1: Write the proportion equation
   12,919.52 : 19,381.24 = 5,524 : x
2. Step 2: Convert to fraction form
   12,919.52/19,381.24 = 5,524/x
3. Step 3: Cross multiply
   12,919.52x = 19,381.24 × 5,524
4. Step 4: Simplify right side
   12,919.52x = 107,061,969.76
5. Step 5: Solve for x
   x = 107,061,969.76/12,919.52
6. Step 6: Final answer
   x = 8,286.84