Finding the Fourth Proportional to 22,164.20, 33,261.88 and 20,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,164.20 : 33,261.88 = 20,046.72 : x
2. Step 2: Convert to fraction form
   22,164.20/33,261.88 = 20,046.72/x
3. Step 3: Cross multiply
   22,164.20x = 33,261.88 × 20,046.72
4. Step 4: Simplify right side
   22,164.20x = 666,791,595.03
5. Step 5: Solve for x
   x = 666,791,595.03/22,164.20
6. Step 6: Final answer
   x = 30,084.18