Finding the Fourth Proportional to 36,415.58, 50,251.59 and 20,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   36,415.58 : 50,251.59 = 20,499.50 : x
2. Step 2: Convert to fraction form
   36,415.58/50,251.59 = 20,499.50/x
3. Step 3: Cross multiply
   36,415.58x = 50,251.59 × 20,499.50
4. Step 4: Simplify right side
   36,415.58x = 1,030,132,469.21
5. Step 5: Solve for x
   x = 1,030,132,469.21/36,415.58
6. Step 6: Final answer
   x = 28,288.23