Finding the Fourth Proportional to 11,086.20, 15,302.21 and 7,258.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.20 : 15,302.21 = 7,258.41 : x
2. Step 2: Convert to fraction form
   11,086.20/15,302.21 = 7,258.41/x
3. Step 3: Cross multiply
   11,086.20x = 15,302.21 × 7,258.41
4. Step 4: Simplify right side
   11,086.20x = 111,069,677.79
5. Step 5: Solve for x
   x = 111,069,677.79/11,086.20
6. Step 6: Final answer
   x = 10,018.73