Finding the Fourth Proportional to 12,610.84, 17,404.63 and 8,147.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,610.84 : 17,404.63 = 8,147.57 : x
2. Step 2: Convert to fraction form
   12,610.84/17,404.63 = 8,147.57/x
3. Step 3: Cross multiply
   12,610.84x = 17,404.63 × 8,147.57
4. Step 4: Simplify right side
   12,610.84x = 141,805,400.51
5. Step 5: Solve for x
   x = 141,805,400.51/12,610.84
6. Step 6: Final answer
   x = 11,244.73