Finding the Fourth Proportional to 14,353.62, 19,805.59 and 7,980.03

Step by Step Solution

1. Step 1: Write the proportion equation
   14,353.62 : 19,805.59 = 7,980.03 : x
2. Step 2: Convert to fraction form
   14,353.62/19,805.59 = 7,980.03/x
3. Step 3: Cross multiply
   14,353.62x = 19,805.59 × 7,980.03
4. Step 4: Simplify right side
   14,353.62x = 158,049,212.34
5. Step 5: Solve for x
   x = 158,049,212.34/14,353.62
6. Step 6: Final answer
   x = 11,011.11