Finding the Fourth Proportional to 36,300.52, 50,098.86 and 20,390.08

Step by Step Solution

1. Step 1: Write the proportion equation
   36,300.52 : 50,098.86 = 20,390.08 : x
2. Step 2: Convert to fraction form
   36,300.52/50,098.86 = 20,390.08/x
3. Step 3: Cross multiply
   36,300.52x = 50,098.86 × 20,390.08
4. Step 4: Simplify right side
   36,300.52x = 1,021,519,763.31
5. Step 5: Solve for x
   x = 1,021,519,763.31/36,300.52
6. Step 6: Final answer
   x = 28,140.64