Finding the Fourth Proportional to 21,233.59, 29,302.71 and 11,802.17

Step by Step Solution

1. Step 1: Write the proportion equation
   21,233.59 : 29,302.71 = 11,802.17 : x
2. Step 2: Convert to fraction form
   21,233.59/29,302.71 = 11,802.17/x
3. Step 3: Cross multiply
   21,233.59x = 29,302.71 × 11,802.17
4. Step 4: Simplify right side
   21,233.59x = 345,835,564.88
5. Step 5: Solve for x
   x = 345,835,564.88/21,233.59
6. Step 6: Final answer
   x = 16,287.19