Finding the Fourth Proportional to 13,196.88, 19,764.06 and 11,456.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.88 : 19,764.06 = 11,456.04 : x
2. Step 2: Convert to fraction form
   13,196.88/19,764.06 = 11,456.04/x
3. Step 3: Cross multiply
   13,196.88x = 19,764.06 × 11,456.04
4. Step 4: Simplify right side
   13,196.88x = 226,417,861.92
5. Step 5: Solve for x
   x = 226,417,861.92/13,196.88
6. Step 6: Final answer
   x = 17,156.92