Finding the Fourth Proportional to 33,172.72, 45,776.28 and 18,268.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,172.72 : 45,776.28 = 18,268.72 : x
2. Step 2: Convert to fraction form
   33,172.72/45,776.28 = 18,268.72/x
3. Step 3: Cross multiply
   33,172.72x = 45,776.28 × 18,268.72
4. Step 4: Simplify right side
   33,172.72x = 836,274,041.96
5. Step 5: Solve for x
   x = 836,274,041.96/33,172.72
6. Step 6: Final answer
   x = 25,209.69