Finding the Fourth Proportional to 10,196.28, 14,063.76 and 6,663.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.28 : 14,063.76 = 6,663.60 : x
2. Step 2: Convert to fraction form
   10,196.28/14,063.76 = 6,663.60/x
3. Step 3: Cross multiply
   10,196.28x = 14,063.76 × 6,663.60
4. Step 4: Simplify right side
   10,196.28x = 93,715,271.14
5. Step 5: Solve for x
   x = 93,715,271.14/10,196.28
6. Step 6: Final answer
   x = 9,191.12