Finding the Fourth Proportional to 12,077.92, 16,642.56 and 9,710.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.92 : 16,642.56 = 9,710.56 : x
2. Step 2: Convert to fraction form
   12,077.92/16,642.56 = 9,710.56/x
3. Step 3: Cross multiply
   12,077.92x = 16,642.56 × 9,710.56
4. Step 4: Simplify right side
   12,077.92x = 161,608,577.43
5. Step 5: Solve for x
   x = 161,608,577.43/12,077.92
6. Step 6: Final answer
   x = 13,380.50