Finding the Fourth Proportional to 17,272.50, 25,917.39 and 7,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,272.50 : 25,917.39 = 7,912.50 : x
2. Step 2: Convert to fraction form
   17,272.50/25,917.39 = 7,912.50/x
3. Step 3: Cross multiply
   17,272.50x = 25,917.39 × 7,912.50
4. Step 4: Simplify right side
   17,272.50x = 205,071,348.38
5. Step 5: Solve for x
   x = 205,071,348.38/17,272.50
6. Step 6: Final answer
   x = 11,872.71