Finding the Fourth Proportional to 12,874.79, 19,344.59 and 8,196.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,874.79 : 19,344.59 = 8,196.91 : x
2. Step 2: Convert to fraction form
   12,874.79/19,344.59 = 8,196.91/x
3. Step 3: Cross multiply
   12,874.79x = 19,344.59 × 8,196.91
4. Step 4: Simplify right side
   12,874.79x = 158,565,863.22
5. Step 5: Solve for x
   x = 158,565,863.22/12,874.79
6. Step 6: Final answer
   x = 12,316.00