Finding the Fourth Proportional to 7,111.56, 10,682.82 and 6,878.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.56 : 10,682.82 = 6,878.28 : x
2. Step 2: Convert to fraction form
   7,111.56/10,682.82 = 6,878.28/x
3. Step 3: Cross multiply
   7,111.56x = 10,682.82 × 6,878.28
4. Step 4: Simplify right side
   7,111.56x = 73,479,427.15
5. Step 5: Solve for x
   x = 73,479,427.15/7,111.56
6. Step 6: Final answer
   x = 10,332.39