Finding the Fourth Proportional to 22,407.59, 30,855.79 and 21,910.33

Step by Step Solution

1. Step 1: Write the proportion equation
   22,407.59 : 30,855.79 = 21,910.33 : x
2. Step 2: Convert to fraction form
   22,407.59/30,855.79 = 21,910.33/x
3. Step 3: Cross multiply
   22,407.59x = 30,855.79 × 21,910.33
4. Step 4: Simplify right side
   22,407.59x = 676,060,409.40
5. Step 5: Solve for x
   x = 676,060,409.40/22,407.59
6. Step 6: Final answer
   x = 30,171.04