Finding the Fourth Proportional to 5,648.03, 7,790.38 and 3,876.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,648.03 : 7,790.38 = 3,876.56 : x
2. Step 2: Convert to fraction form
   5,648.03/7,790.38 = 3,876.56/x
3. Step 3: Cross multiply
   5,648.03x = 7,790.38 × 3,876.56
4. Step 4: Simplify right side
   5,648.03x = 30,199,856.06
5. Step 5: Solve for x
   x = 30,199,856.06/5,648.03
6. Step 6: Final answer
   x = 5,346.97