Finding the Fourth Proportional to 7,815.49, 10,774.15 and 5,573.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,815.49 : 10,774.15 = 5,573.48 : x
2. Step 2: Convert to fraction form
   7,815.49/10,774.15 = 5,573.48/x
3. Step 3: Cross multiply
   7,815.49x = 10,774.15 × 5,573.48
4. Step 4: Simplify right side
   7,815.49x = 60,049,441.74
5. Step 5: Solve for x
   x = 60,049,441.74/7,815.49
6. Step 6: Final answer
   x = 7,683.39