Finding the Fourth Proportional to 16,086.40, 24,145.80 and 7,773.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,086.40 : 24,145.80 = 7,773.10 : x
2. Step 2: Convert to fraction form
   16,086.40/24,145.80 = 7,773.10/x
3. Step 3: Cross multiply
   16,086.40x = 24,145.80 × 7,773.10
4. Step 4: Simplify right side
   16,086.40x = 187,687,717.98
5. Step 5: Solve for x
   x = 187,687,717.98/16,086.40
6. Step 6: Final answer
   x = 11,667.48