Finding the Fourth Proportional to 33,015.50, 45,561.47 and 18,868.31

Step by Step Solution

1. Step 1: Write the proportion equation
   33,015.50 : 45,561.47 = 18,868.31 : x
2. Step 2: Convert to fraction form
   33,015.50/45,561.47 = 18,868.31/x
3. Step 3: Cross multiply
   33,015.50x = 45,561.47 × 18,868.31
4. Step 4: Simplify right side
   33,015.50x = 859,667,940.02
5. Step 5: Solve for x
   x = 859,667,940.02/33,015.50
6. Step 6: Final answer
   x = 26,038.31