Finding the Fourth Proportional to 13,096.80, 19,642.38 and 4,329.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,096.80 : 19,642.38 = 4,329.72 : x
2. Step 2: Convert to fraction form
   13,096.80/19,642.38 = 4,329.72/x
3. Step 3: Cross multiply
   13,096.80x = 19,642.38 × 4,329.72
4. Step 4: Simplify right side
   13,096.80x = 85,046,005.53
5. Step 5: Solve for x
   x = 85,046,005.53/13,096.80
6. Step 6: Final answer
   x = 6,493.65