Finding the Fourth Proportional to 17,272.25, 25,887.06 and 8,947.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,272.25 : 25,887.06 = 8,947.47 : x
2. Step 2: Convert to fraction form
   17,272.25/25,887.06 = 8,947.47/x
3. Step 3: Cross multiply
   17,272.25x = 25,887.06 × 8,947.47
4. Step 4: Simplify right side
   17,272.25x = 231,623,789.81
5. Step 5: Solve for x
   x = 231,623,789.81/17,272.25
6. Step 6: Final answer
   x = 13,410.17