Finding the Fourth Proportional to 12,488.56, 17,230.08 and 8,241.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.56 : 17,230.08 = 8,241.73 : x
2. Step 2: Convert to fraction form
   12,488.56/17,230.08 = 8,241.73/x
3. Step 3: Cross multiply
   12,488.56x = 17,230.08 × 8,241.73
4. Step 4: Simplify right side
   12,488.56x = 142,005,667.24
5. Step 5: Solve for x
   x = 142,005,667.24/12,488.56
6. Step 6: Final answer
   x = 11,370.86