Finding the Fourth Proportional to 12,940.15, 19,414.32 and 4,619.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,940.15 : 19,414.32 = 4,619.98 : x
2. Step 2: Convert to fraction form
   12,940.15/19,414.32 = 4,619.98/x
3. Step 3: Cross multiply
   12,940.15x = 19,414.32 × 4,619.98
4. Step 4: Simplify right side
   12,940.15x = 89,693,721.58
5. Step 5: Solve for x
   x = 89,693,721.58/12,940.15
6. Step 6: Final answer
   x = 6,931.43