Finding the Fourth Proportional to 22,461.01, 30,771.53 and 21,619.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,461.01 : 30,771.53 = 21,619.82 : x
2. Step 2: Convert to fraction form
   22,461.01/30,771.53 = 21,619.82/x
3. Step 3: Cross multiply
   22,461.01x = 30,771.53 × 21,619.82
4. Step 4: Simplify right side
   22,461.01x = 665,274,939.72
5. Step 5: Solve for x
   x = 665,274,939.72/22,461.01
6. Step 6: Final answer
   x = 29,619.10