Finding the Fourth Proportional to 12,298.56, 16,977.51 and 8,331.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298.56 : 16,977.51 = 8,331.72 : x
2. Step 2: Convert to fraction form
   12,298.56/16,977.51 = 8,331.72/x
3. Step 3: Cross multiply
   12,298.56x = 16,977.51 × 8,331.72
4. Step 4: Simplify right side
   12,298.56x = 141,451,859.62
5. Step 5: Solve for x
   x = 141,451,859.62/12,298.56
6. Step 6: Final answer
   x = 11,501.50