Finding the Fourth Proportional to 11,245.06, 16,865.42 and 3,451.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,245.06 : 16,865.42 = 3,451.78 : x
2. Step 2: Convert to fraction form
   11,245.06/16,865.42 = 3,451.78/x
3. Step 3: Cross multiply
   11,245.06x = 16,865.42 × 3,451.78
4. Step 4: Simplify right side
   11,245.06x = 58,215,719.45
5. Step 5: Solve for x
   x = 58,215,719.45/11,245.06
6. Step 6: Final answer
   x = 5,177.00