Finding the Fourth Proportional to 17,081.76, 25,625.36 and 7,221.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,081.76 : 25,625.36 = 7,221.12 : x
2. Step 2: Convert to fraction form
   17,081.76/25,625.36 = 7,221.12/x
3. Step 3: Cross multiply
   17,081.76x = 25,625.36 × 7,221.12
4. Step 4: Simplify right side
   17,081.76x = 185,043,799.60
5. Step 5: Solve for x
   x = 185,043,799.60/17,081.76
6. Step 6: Final answer
   x = 10,832.83