Finding the Fourth Proportional to 14,353.14, 19,806.69 and 7,980.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,353.14 : 19,806.69 = 7,980.16 : x
2. Step 2: Convert to fraction form
   14,353.14/19,806.69 = 7,980.16/x
3. Step 3: Cross multiply
   14,353.14x = 19,806.69 × 7,980.16
4. Step 4: Simplify right side
   14,353.14x = 158,060,555.27
5. Step 5: Solve for x
   x = 158,060,555.27/14,353.14
6. Step 6: Final answer
   x = 11,012.26