Finding the Fourth Proportional to 7,776.96, 10,727.88 and 5,388.33

Step by Step Solution

1. Step 1: Write the proportion equation
   7,776.96 : 10,727.88 = 5,388.33 : x
2. Step 2: Convert to fraction form
   7,776.96/10,727.88 = 5,388.33/x
3. Step 3: Cross multiply
   7,776.96x = 10,727.88 × 5,388.33
4. Step 4: Simplify right side
   7,776.96x = 57,805,357.52
5. Step 5: Solve for x
   x = 57,805,357.52/7,776.96
6. Step 6: Final answer
   x = 7,432.90