Finding the Fourth Proportional to 22,665.21, 31,267.94 and 15,104.17

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665.21 : 31,267.94 = 15,104.17 : x
2. Step 2: Convert to fraction form
   22,665.21/31,267.94 = 15,104.17/x
3. Step 3: Cross multiply
   22,665.21x = 31,267.94 × 15,104.17
4. Step 4: Simplify right side
   22,665.21x = 472,276,281.31
5. Step 5: Solve for x
   x = 472,276,281.31/22,665.21
6. Step 6: Final answer
   x = 20,837.06