Finding the Fourth Proportional to 12,591.54, 17,377.27 and 7,555.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,591.54 : 17,377.27 = 7,555.98 : x
2. Step 2: Convert to fraction form
   12,591.54/17,377.27 = 7,555.98/x
3. Step 3: Cross multiply
   12,591.54x = 17,377.27 × 7,555.98
4. Step 4: Simplify right side
   12,591.54x = 131,302,304.57
5. Step 5: Solve for x
   x = 131,302,304.57/12,591.54
6. Step 6: Final answer
   x = 10,427.82