Finding the Fourth Proportional to 7,050.42, 10,578.78 and 3,099.74

Step by Step Solution

1. Step 1: Write the proportion equation
   7,050.42 : 10,578.78 = 3,099.74 : x
2. Step 2: Convert to fraction form
   7,050.42/10,578.78 = 3,099.74/x
3. Step 3: Cross multiply
   7,050.42x = 10,578.78 × 3,099.74
4. Step 4: Simplify right side
   7,050.42x = 32,791,414.62
5. Step 5: Solve for x
   x = 32,791,414.62/7,050.42
6. Step 6: Final answer
   x = 4,650.99