Finding the Fourth Proportional to 7,388.78, 11,096.37 and 7,091.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,388.78 : 11,096.37 = 7,091.48 : x
2. Step 2: Convert to fraction form
   7,388.78/11,096.37 = 7,091.48/x
3. Step 3: Cross multiply
   7,388.78x = 11,096.37 × 7,091.48
4. Step 4: Simplify right side
   7,388.78x = 78,689,713.67
5. Step 5: Solve for x
   x = 78,689,713.67/7,388.78
6. Step 6: Final answer
   x = 10,649.90