Finding the Fourth Proportional to 5,111.58, 7,054.18 and 3,123.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.58 : 7,054.18 = 3,123.04 : x
2. Step 2: Convert to fraction form
   5,111.58/7,054.18 = 3,123.04/x
3. Step 3: Cross multiply
   5,111.58x = 7,054.18 × 3,123.04
4. Step 4: Simplify right side
   5,111.58x = 22,030,486.31
5. Step 5: Solve for x
   x = 22,030,486.31/5,111.58
6. Step 6: Final answer
   x = 4,309.92