Finding the Fourth Proportional to 7,286.45, 10,093.37 and 7,138.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,286.45 : 10,093.37 = 7,138.82 : x
2. Step 2: Convert to fraction form
   7,286.45/10,093.37 = 7,138.82/x
3. Step 3: Cross multiply
   7,286.45x = 10,093.37 × 7,138.82
4. Step 4: Simplify right side
   7,286.45x = 72,054,665.46
5. Step 5: Solve for x
   x = 72,054,665.46/7,286.45
6. Step 6: Final answer
   x = 9,888.86