Finding the Fourth Proportional to 6,931.99, 10,388.15 and 5,364.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,931.99 : 10,388.15 = 5,364.69 : x
2. Step 2: Convert to fraction form
   6,931.99/10,388.15 = 5,364.69/x
3. Step 3: Cross multiply
   6,931.99x = 10,388.15 × 5,364.69
4. Step 4: Simplify right side
   6,931.99x = 55,729,216.98
5. Step 5: Solve for x
   x = 55,729,216.98/6,931.99
6. Step 6: Final answer
   x = 8,039.43