Finding the Fourth Proportional to 12,965.72, 17,892.72 and 7,376.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,965.72 : 17,892.72 = 7,376.72 : x
2. Step 2: Convert to fraction form
   12,965.72/17,892.72 = 7,376.72/x
3. Step 3: Cross multiply
   12,965.72x = 17,892.72 × 7,376.72
4. Step 4: Simplify right side
   12,965.72x = 131,989,585.48
5. Step 5: Solve for x
   x = 131,989,585.48/12,965.72
6. Step 6: Final answer
   x = 10,179.89