Finding the Fourth Proportional to 22,902.98, 31,606.89 and 21,853.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,902.98 : 31,606.89 = 21,853.22 : x
2. Step 2: Convert to fraction form
   22,902.98/31,606.89 = 21,853.22/x
3. Step 3: Cross multiply
   22,902.98x = 31,606.89 × 21,853.22
4. Step 4: Simplify right side
   22,902.98x = 690,712,320.69
5. Step 5: Solve for x
   x = 690,712,320.69/22,902.98
6. Step 6: Final answer
   x = 30,158.19