Finding the Fourth Proportional to 3,123.60, 4,301.79 and 3,055.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.60 : 4,301.79 = 3,055.56 : x
2. Step 2: Convert to fraction form
   3,123.60/4,301.79 = 3,055.56/x
3. Step 3: Cross multiply
   3,123.60x = 4,301.79 × 3,055.56
4. Step 4: Simplify right side
   3,123.60x = 13,144,377.45
5. Step 5: Solve for x
   x = 13,144,377.45/3,123.60
6. Step 6: Final answer
   x = 4,208.09