Finding the Fourth Proportional to 12,081.79, 16,680.62 and 9,849.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.79 : 16,680.62 = 9,849.02 : x
2. Step 2: Convert to fraction form
   12,081.79/16,680.62 = 9,849.02/x
3. Step 3: Cross multiply
   12,081.79x = 16,680.62 × 9,849.02
4. Step 4: Simplify right side
   12,081.79x = 164,287,710.75
5. Step 5: Solve for x
   x = 164,287,710.75/12,081.79
6. Step 6: Final answer
   x = 13,597.97