Finding the Fourth Proportional to 10,196.12, 14,070.78 and 5,719.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.12 : 14,070.78 = 5,719.60 : x
2. Step 2: Convert to fraction form
   10,196.12/14,070.78 = 5,719.60/x
3. Step 3: Cross multiply
   10,196.12x = 14,070.78 × 5,719.60
4. Step 4: Simplify right side
   10,196.12x = 80,479,233.29
5. Step 5: Solve for x
   x = 80,479,233.29/10,196.12
6. Step 6: Final answer
   x = 7,893.12