Finding the Fourth Proportional to 12,943.94, 19,411.80 and 5,546.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,943.94 : 19,411.80 = 5,546.42 : x
2. Step 2: Convert to fraction form
   12,943.94/19,411.80 = 5,546.42/x
3. Step 3: Cross multiply
   12,943.94x = 19,411.80 × 5,546.42
4. Step 4: Simplify right side
   12,943.94x = 107,665,995.76
5. Step 5: Solve for x
   x = 107,665,995.76/12,943.94
6. Step 6: Final answer
   x = 8,317.87