Finding the Fourth Proportional to 12,349.68, 17,045.04 and 8,580.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,349.68 : 17,045.04 = 8,580.72 : x
2. Step 2: Convert to fraction form
   12,349.68/17,045.04 = 8,580.72/x
3. Step 3: Cross multiply
   12,349.68x = 17,045.04 × 8,580.72
4. Step 4: Simplify right side
   12,349.68x = 146,258,715.63
5. Step 5: Solve for x
   x = 146,258,715.63/12,349.68
6. Step 6: Final answer
   x = 11,843.12