Finding the Fourth Proportional to 12,966.63, 17,894.06 and 7,377.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,966.63 : 17,894.06 = 7,377.99 : x
2. Step 2: Convert to fraction form
   12,966.63/17,894.06 = 7,377.99/x
3. Step 3: Cross multiply
   12,966.63x = 17,894.06 × 7,377.99
4. Step 4: Simplify right side
   12,966.63x = 132,022,158.85
5. Step 5: Solve for x
   x = 132,022,158.85/12,966.63
6. Step 6: Final answer
   x = 10,181.69