Finding the Fourth Proportional to 23,868.76, 32,939.56 and 13,259.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,868.76 : 32,939.56 = 13,259.06 : x
2. Step 2: Convert to fraction form
   23,868.76/32,939.56 = 13,259.06/x
3. Step 3: Cross multiply
   23,868.76x = 32,939.56 × 13,259.06
4. Step 4: Simplify right side
   23,868.76x = 436,747,602.41
5. Step 5: Solve for x
   x = 436,747,602.41/23,868.76
6. Step 6: Final answer
   x = 18,297.88