Finding the Fourth Proportional to 10,931.22, 15,067.62 and 7,388.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,931.22 : 15,067.62 = 7,388.28 : x
2. Step 2: Convert to fraction form
   10,931.22/15,067.62 = 7,388.28/x
3. Step 3: Cross multiply
   10,931.22x = 15,067.62 × 7,388.28
4. Step 4: Simplify right side
   10,931.22x = 111,323,795.49
5. Step 5: Solve for x
   x = 111,323,795.49/10,931.22
6. Step 6: Final answer
   x = 10,184.02