Finding the Fourth Proportional to 5,406.96, 8,113.68 and 2,123.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,406.96 : 8,113.68 = 2,123.04 : x
2. Step 2: Convert to fraction form
   5,406.96/8,113.68 = 2,123.04/x
3. Step 3: Cross multiply
   5,406.96x = 8,113.68 × 2,123.04
4. Step 4: Simplify right side
   5,406.96x = 17,225,667.19
5. Step 5: Solve for x
   x = 17,225,667.19/5,406.96
6. Step 6: Final answer
   x = 3,185.83