Finding the Fourth Proportional to 5,426.25, 8,139.72 and 1,530.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,426.25 : 8,139.72 = 1,530.96 : x
2. Step 2: Convert to fraction form
   5,426.25/8,139.72 = 1,530.96/x
3. Step 3: Cross multiply
   5,426.25x = 8,139.72 × 1,530.96
4. Step 4: Simplify right side
   5,426.25x = 12,461,585.73
5. Step 5: Solve for x
   x = 12,461,585.73/5,426.25
6. Step 6: Final answer
   x = 2,296.54