Finding the Fourth Proportional to 10,426.15, 14,387.52 and 5,709.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,426.15 : 14,387.52 = 5,709.52 : x
2. Step 2: Convert to fraction form
   10,426.15/14,387.52 = 5,709.52/x
3. Step 3: Cross multiply
   10,426.15x = 14,387.52 × 5,709.52
4. Step 4: Simplify right side
   10,426.15x = 82,145,833.19
5. Step 5: Solve for x
   x = 82,145,833.19/10,426.15
6. Step 6: Final answer
   x = 7,878.83