Finding the Fourth Proportional to 12,994.96, 19,488.09 and 4,227.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.96 : 19,488.09 = 4,227.82 : x
2. Step 2: Convert to fraction form
   12,994.96/19,488.09 = 4,227.82/x
3. Step 3: Cross multiply
   12,994.96x = 19,488.09 × 4,227.82
4. Step 4: Simplify right side
   12,994.96x = 82,392,158.61
5. Step 5: Solve for x
   x = 82,392,158.61/12,994.96
6. Step 6: Final answer
   x = 6,340.32