Finding the Fourth Proportional to 10,967.49, 15,139.98 and 7,190.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,967.49 : 15,139.98 = 7,190.73 : x
2. Step 2: Convert to fraction form
   10,967.49/15,139.98 = 7,190.73/x
3. Step 3: Cross multiply
   10,967.49x = 15,139.98 × 7,190.73
4. Step 4: Simplify right side
   10,967.49x = 108,867,508.39
5. Step 5: Solve for x
   x = 108,867,508.39/10,967.49
6. Step 6: Final answer
   x = 9,926.38