Finding the Fourth Proportional to 5,426.10, 8,139.10 and 1,530.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,426.10 : 8,139.10 = 1,530.42 : x
2. Step 2: Convert to fraction form
   5,426.10/8,139.10 = 1,530.42/x
3. Step 3: Cross multiply
   5,426.10x = 8,139.10 × 1,530.42
4. Step 4: Simplify right side
   5,426.10x = 12,456,241.42
5. Step 5: Solve for x
   x = 12,456,241.42/5,426.10
6. Step 6: Final answer
   x = 2,295.62