Finding the Fourth Proportional to 33,139.63, 45,732.69 and 18,235.63

Step by Step Solution

1. Step 1: Write the proportion equation
   33,139.63 : 45,732.69 = 18,235.63 : x
2. Step 2: Convert to fraction form
   33,139.63/45,732.69 = 18,235.63/x
3. Step 3: Cross multiply
   33,139.63x = 45,732.69 × 18,235.63
4. Step 4: Simplify right side
   33,139.63x = 833,964,093.90
5. Step 5: Solve for x
   x = 833,964,093.90/33,139.63
6. Step 6: Final answer
   x = 25,165.16