Finding the Fourth Proportional to 15,443.15, 23,109.36 and 13,370.29

Step by Step Solution

1. Step 1: Write the proportion equation
   15,443.15 : 23,109.36 = 13,370.29 : x
2. Step 2: Convert to fraction form
   15,443.15/23,109.36 = 13,370.29/x
3. Step 3: Cross multiply
   15,443.15x = 23,109.36 × 13,370.29
4. Step 4: Simplify right side
   15,443.15x = 308,978,737.00
5. Step 5: Solve for x
   x = 308,978,737.00/15,443.15
6. Step 6: Final answer
   x = 20,007.50