Finding the Fourth Proportional to 12,372.72, 17,059.32 and 8,599.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,372.72 : 17,059.32 = 8,599.08 : x
2. Step 2: Convert to fraction form
   12,372.72/17,059.32 = 8,599.08/x
3. Step 3: Cross multiply
   12,372.72x = 17,059.32 × 8,599.08
4. Step 4: Simplify right side
   12,372.72x = 146,694,457.43
5. Step 5: Solve for x
   x = 146,694,457.43/12,372.72
6. Step 6: Final answer
   x = 11,856.28