Finding the Fourth Proportional to 10,196.28, 15,276.70 and 5,519.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.28 : 15,276.70 = 5,519.52 : x
2. Step 2: Convert to fraction form
   10,196.28/15,276.70 = 5,519.52/x
3. Step 3: Cross multiply
   10,196.28x = 15,276.70 × 5,519.52
4. Step 4: Simplify right side
   10,196.28x = 84,320,051.18
5. Step 5: Solve for x
   x = 84,320,051.18/10,196.28
6. Step 6: Final answer
   x = 8,269.69