Finding the Fourth Proportional to 15,796.24, 21,799.70 and 8,626.82

Step by Step Solution

1. Step 1: Write the proportion equation
   15,796.24 : 21,799.70 = 8,626.82 : x
2. Step 2: Convert to fraction form
   15,796.24/21,799.70 = 8,626.82/x
3. Step 3: Cross multiply
   15,796.24x = 21,799.70 × 8,626.82
4. Step 4: Simplify right side
   15,796.24x = 188,062,099.32
5. Step 5: Solve for x
   x = 188,062,099.32/15,796.24
6. Step 6: Final answer
   x = 11,905.50