Finding the Fourth Proportional to 12,516.30, 18,774.52 and 4,196.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,516.30 : 18,774.52 = 4,196.96 : x
2. Step 2: Convert to fraction form
   12,516.30/18,774.52 = 4,196.96/x
3. Step 3: Cross multiply
   12,516.30x = 18,774.52 × 4,196.96
4. Step 4: Simplify right side
   12,516.30x = 78,795,998.81
5. Step 5: Solve for x
   x = 78,795,998.81/12,516.30
6. Step 6: Final answer
   x = 6,295.47