Finding the Fourth Proportional to 31,515.72, 43,492.61 and 17,369.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,515.72 : 43,492.61 = 17,369.48 : x
2. Step 2: Convert to fraction form
   31,515.72/43,492.61 = 17,369.48/x
3. Step 3: Cross multiply
   31,515.72x = 43,492.61 × 17,369.48
4. Step 4: Simplify right side
   31,515.72x = 755,444,019.54
5. Step 5: Solve for x
   x = 755,444,019.54/31,515.72
6. Step 6: Final answer
   x = 23,970.39