Finding the Fourth Proportional to 23,535.98, 32,480.05 and 12,780.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,535.98 : 32,480.05 = 12,780.88 : x
2. Step 2: Convert to fraction form
   23,535.98/32,480.05 = 12,780.88/x
3. Step 3: Cross multiply
   23,535.98x = 32,480.05 × 12,780.88
4. Step 4: Simplify right side
   23,535.98x = 415,123,621.44
5. Step 5: Solve for x
   x = 415,123,621.44/23,535.98
6. Step 6: Final answer
   x = 17,637.83