Finding the Fourth Proportional to 5,620.42, 7,756.61 and 3,103.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,620.42 : 7,756.61 = 3,103.02 : x
2. Step 2: Convert to fraction form
   5,620.42/7,756.61 = 3,103.02/x
3. Step 3: Cross multiply
   5,620.42x = 7,756.61 × 3,103.02
4. Step 4: Simplify right side
   5,620.42x = 24,068,904.33
5. Step 5: Solve for x
   x = 24,068,904.33/5,620.42
6. Step 6: Final answer
   x = 4,282.40