Finding the Fourth Proportional to 12,964.13, 19,441.30 and 4,196.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,964.13 : 19,441.30 = 4,196.69 : x
2. Step 2: Convert to fraction form
   12,964.13/19,441.30 = 4,196.69/x
3. Step 3: Cross multiply
   12,964.13x = 19,441.30 × 4,196.69
4. Step 4: Simplify right side
   12,964.13x = 81,589,109.30
5. Step 5: Solve for x
   x = 81,589,109.30/12,964.13
6. Step 6: Final answer
   x = 6,293.45