Finding the Fourth Proportional to 22,141.06, 30,764.34 and 21,909.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,141.06 : 30,764.34 = 21,909.94 : x
2. Step 2: Convert to fraction form
   22,141.06/30,764.34 = 21,909.94/x
3. Step 3: Cross multiply
   22,141.06x = 30,764.34 × 21,909.94
4. Step 4: Simplify right side
   22,141.06x = 674,044,843.54
5. Step 5: Solve for x
   x = 674,044,843.54/22,141.06
6. Step 6: Final answer
   x = 30,443.21