Finding the Fourth Proportional to 22,903.98, 31,608.27 and 21,854.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,903.98 : 31,608.27 = 21,854.22 : x
2. Step 2: Convert to fraction form
   22,903.98/31,608.27 = 21,854.22/x
3. Step 3: Cross multiply
   22,903.98x = 31,608.27 × 21,854.22
4. Step 4: Simplify right side
   22,903.98x = 690,774,086.40
5. Step 5: Solve for x
   x = 690,774,086.40/22,903.98
6. Step 6: Final answer
   x = 30,159.57