Finding the Fourth Proportional to 22,142.61, 33,185.84 and 21,908.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142.61 : 33,185.84 = 21,908.25 : x
2. Step 2: Convert to fraction form
   22,142.61/33,185.84 = 21,908.25/x
3. Step 3: Cross multiply
   22,142.61x = 33,185.84 × 21,908.25
4. Step 4: Simplify right side
   22,142.61x = 727,043,569.64
5. Step 5: Solve for x
   x = 727,043,569.64/22,142.61
6. Step 6: Final answer
   x = 32,834.59