Finding the Fourth Proportional to 10,868.31, 16,320.59 and 7,333.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,868.31 : 16,320.59 = 7,333.20 : x
2. Step 2: Convert to fraction form
   10,868.31/16,320.59 = 7,333.20/x
3. Step 3: Cross multiply
   10,868.31x = 16,320.59 × 7,333.20
4. Step 4: Simplify right side
   10,868.31x = 119,682,141.42
5. Step 5: Solve for x
   x = 119,682,141.42/10,868.31
6. Step 6: Final answer
   x = 11,012.03