Finding the Fourth Proportional to 10,933.22, 15,070.38 and 7,390.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,933.22 : 15,070.38 = 7,390.28 : x
2. Step 2: Convert to fraction form
   10,933.22/15,070.38 = 7,390.28/x
3. Step 3: Cross multiply
   10,933.22x = 15,070.38 × 7,390.28
4. Step 4: Simplify right side
   10,933.22x = 111,374,327.91
5. Step 5: Solve for x
   x = 111,374,327.91/10,933.22
6. Step 6: Final answer
   x = 10,186.78