Finding the Fourth Proportional to 8,064.18, 11,132.32 and 5,379.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,064.18 : 11,132.32 = 5,379.87 : x
2. Step 2: Convert to fraction form
   8,064.18/11,132.32 = 5,379.87/x
3. Step 3: Cross multiply
   8,064.18x = 11,132.32 × 5,379.87
4. Step 4: Simplify right side
   8,064.18x = 59,890,434.40
5. Step 5: Solve for x
   x = 59,890,434.40/8,064.18
6. Step 6: Final answer
   x = 7,426.72