Finding the Fourth Proportional to 12,360.72, 17,045 and 8,588.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,360.72 : 17,045 = 8,588.16 : x
2. Step 2: Convert to fraction form
   12,360.72/17,045 = 8,588.16/x
3. Step 3: Cross multiply
   12,360.72x = 17,045 × 8,588.16
4. Step 4: Simplify right side
   12,360.72x = 146,385,187.20
5. Step 5: Solve for x
   x = 146,385,187.20/12,360.72
6. Step 6: Final answer
   x = 11,842.77