Finding the Fourth Proportional to 13,297.59, 19,953.33 and 8,616.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,297.59 : 19,953.33 = 8,616.38 : x
2. Step 2: Convert to fraction form
   13,297.59/19,953.33 = 8,616.38/x
3. Step 3: Cross multiply
   13,297.59x = 19,953.33 × 8,616.38
4. Step 4: Simplify right side
   13,297.59x = 171,925,373.78
5. Step 5: Solve for x
   x = 171,925,373.78/13,297.59
6. Step 6: Final answer
   x = 12,929.06