Finding the Fourth Proportional to 22,591.56, 31,175.88 and 12,519.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,591.56 : 31,175.88 = 12,519.96 : x
2. Step 2: Convert to fraction form
   22,591.56/31,175.88 = 12,519.96/x
3. Step 3: Cross multiply
   22,591.56x = 31,175.88 × 12,519.96
4. Step 4: Simplify right side
   22,591.56x = 390,320,770.56
5. Step 5: Solve for x
   x = 390,320,770.56/22,591.56
6. Step 6: Final answer
   x = 17,277.28