Finding the Fourth Proportional to 32,509.80, 48,769.83 and 13,789.89

Step by Step Solution

1. Step 1: Write the proportion equation
   32,509.80 : 48,769.83 = 13,789.89 : x
2. Step 2: Convert to fraction form
   32,509.80/48,769.83 = 13,789.89/x
3. Step 3: Cross multiply
   32,509.80x = 48,769.83 × 13,789.89
4. Step 4: Simplify right side
   32,509.80x = 672,530,591.02
5. Step 5: Solve for x
   x = 672,530,591.02/32,509.80
6. Step 6: Final answer
   x = 20,687.01