Finding the Fourth Proportional to 12,966.72, 17,894.10 and 7,377.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,966.72 : 17,894.10 = 7,377.72 : x
2. Step 2: Convert to fraction form
   12,966.72/17,894.10 = 7,377.72/x
3. Step 3: Cross multiply
   12,966.72x = 17,894.10 × 7,377.72
4. Step 4: Simplify right side
   12,966.72x = 132,017,659.45
5. Step 5: Solve for x
   x = 132,017,659.45/12,966.72
6. Step 6: Final answer
   x = 10,181.27