Finding the Fourth Proportional to 22,505.14, 30,967.31 and 21,820.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,505.14 : 30,967.31 = 21,820.34 : x
2. Step 2: Convert to fraction form
   22,505.14/30,967.31 = 21,820.34/x
3. Step 3: Cross multiply
   22,505.14x = 30,967.31 × 21,820.34
4. Step 4: Simplify right side
   22,505.14x = 675,717,190.86
5. Step 5: Solve for x
   x = 675,717,190.86/22,505.14
6. Step 6: Final answer
   x = 30,025.01