Finding the Fourth Proportional to 8,758.52, 12,080.74 and 5,219

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.52 : 12,080.74 = 5,219 : x
2. Step 2: Convert to fraction form
   8,758.52/12,080.74 = 5,219/x
3. Step 3: Cross multiply
   8,758.52x = 12,080.74 × 5,219
4. Step 4: Simplify right side
   8,758.52x = 63,049,382.06
5. Step 5: Solve for x
   x = 63,049,382.06/8,758.52
6. Step 6: Final answer
   x = 7,198.63