Finding the Fourth Proportional to 7,766.52, 10,718.16 and 5,111.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,766.52 : 10,718.16 = 5,111.88 : x
2. Step 2: Convert to fraction form
   7,766.52/10,718.16 = 5,111.88/x
3. Step 3: Cross multiply
   7,766.52x = 10,718.16 × 5,111.88
4. Step 4: Simplify right side
   7,766.52x = 54,789,947.74
5. Step 5: Solve for x
   x = 54,789,947.74/7,766.52
6. Step 6: Final answer
   x = 7,054.63