Finding the Fourth Proportional to 11,157.69, 15,398.33 and 7,374.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,157.69 : 15,398.33 = 7,374.22 : x
2. Step 2: Convert to fraction form
   11,157.69/15,398.33 = 7,374.22/x
3. Step 3: Cross multiply
   11,157.69x = 15,398.33 × 7,374.22
4. Step 4: Simplify right side
   11,157.69x = 113,550,597.69
5. Step 5: Solve for x
   x = 113,550,597.69/11,157.69
6. Step 6: Final answer
   x = 10,176.89