Finding the Fourth Proportional to 36,415.20, 50,250.82 and 20,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   36,415.20 : 50,250.82 = 20,498.72 : x
2. Step 2: Convert to fraction form
   36,415.20/50,250.82 = 20,498.72/x
3. Step 3: Cross multiply
   36,415.20x = 50,250.82 × 20,498.72
4. Step 4: Simplify right side
   36,415.20x = 1,030,077,488.95
5. Step 5: Solve for x
   x = 1,030,077,488.95/36,415.20
6. Step 6: Final answer
   x = 28,287.02