Finding the Fourth Proportional to 22,890.77, 31,595.37 and 21,496.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,890.77 : 31,595.37 = 21,496.76 : x
2. Step 2: Convert to fraction form
   22,890.77/31,595.37 = 21,496.76/x
3. Step 3: Cross multiply
   22,890.77x = 31,595.37 × 21,496.76
4. Step 4: Simplify right side
   22,890.77x = 679,198,086.00
5. Step 5: Solve for x
   x = 679,198,086.00/22,890.77
6. Step 6: Final answer
   x = 29,671.26