Finding the Fourth Proportional to 10,196.40, 14,070.48 and 5,719.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.40 : 14,070.48 = 5,719.36 : x
2. Step 2: Convert to fraction form
   10,196.40/14,070.48 = 5,719.36/x
3. Step 3: Cross multiply
   10,196.40x = 14,070.48 × 5,719.36
4. Step 4: Simplify right side
   10,196.40x = 80,474,140.49
5. Step 5: Solve for x
   x = 80,474,140.49/10,196.40
6. Step 6: Final answer
   x = 7,892.41