Finding the Fourth Proportional to 3,123.10, 4,301.13 and 3,055.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.10 : 4,301.13 = 3,055.06 : x
2. Step 2: Convert to fraction form
   3,123.10/4,301.13 = 3,055.06/x
3. Step 3: Cross multiply
   3,123.10x = 4,301.13 × 3,055.06
4. Step 4: Simplify right side
   3,123.10x = 13,140,210.22
5. Step 5: Solve for x
   x = 13,140,210.22/3,123.10
6. Step 6: Final answer
   x = 4,207.43