Finding the Fourth Proportional to 12,506.82, 17,257.50 and 7,200.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,506.82 : 17,257.50 = 7,200.78 : x
2. Step 2: Convert to fraction form
   12,506.82/17,257.50 = 7,200.78/x
3. Step 3: Cross multiply
   12,506.82x = 17,257.50 × 7,200.78
4. Step 4: Simplify right side
   12,506.82x = 124,267,460.85
5. Step 5: Solve for x
   x = 124,267,460.85/12,506.82
6. Step 6: Final answer
   x = 9,935.98