Finding the Fourth Proportional to 23,387.87, 32,309.42 and 20,238.59

Step by Step Solution

1. Step 1: Write the proportion equation
   23,387.87 : 32,309.42 = 20,238.59 : x
2. Step 2: Convert to fraction form
   23,387.87/32,309.42 = 20,238.59/x
3. Step 3: Cross multiply
   23,387.87x = 32,309.42 × 20,238.59
4. Step 4: Simplify right side
   23,387.87x = 653,897,084.10
5. Step 5: Solve for x
   x = 653,897,084.10/23,387.87
6. Step 6: Final answer
   x = 27,958.81