Finding the Fourth Proportional to 21,802.25, 32,706.69 and 9,322.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,802.25 : 32,706.69 = 9,322.31 : x
2. Step 2: Convert to fraction form
   21,802.25/32,706.69 = 9,322.31/x
3. Step 3: Cross multiply
   21,802.25x = 32,706.69 × 9,322.31
4. Step 4: Simplify right side
   21,802.25x = 304,901,950.06
5. Step 5: Solve for x
   x = 304,901,950.06/21,802.25
6. Step 6: Final answer
   x = 13,984.88