Finding the Fourth Proportional to 23,815.67, 32,858.06 and 13,742.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,815.67 : 32,858.06 = 13,742.78 : x
2. Step 2: Convert to fraction form
   23,815.67/32,858.06 = 13,742.78/x
3. Step 3: Cross multiply
   23,815.67x = 32,858.06 × 13,742.78
4. Step 4: Simplify right side
   23,815.67x = 451,561,042.02
5. Step 5: Solve for x
   x = 451,561,042.02/23,815.67
6. Step 6: Final answer
   x = 18,960.67