Finding the Fourth Proportional to 23,870.05, 32,939.73 and 13,260.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,870.05 : 32,939.73 = 13,260.34 : x
2. Step 2: Convert to fraction form
   23,870.05/32,939.73 = 13,260.34/x
3. Step 3: Cross multiply
   23,870.05x = 32,939.73 × 13,260.34
4. Step 4: Simplify right side
   23,870.05x = 436,792,019.31
5. Step 5: Solve for x
   x = 436,792,019.31/23,870.05
6. Step 6: Final answer
   x = 18,298.75