Finding the Fourth Proportional to 12,757.56, 17,607.53 and 10,629.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,757.56 : 17,607.53 = 10,629.72 : x
2. Step 2: Convert to fraction form
   12,757.56/17,607.53 = 10,629.72/x
3. Step 3: Cross multiply
   12,757.56x = 17,607.53 × 10,629.72
4. Step 4: Simplify right side
   12,757.56x = 187,163,060.64
5. Step 5: Solve for x
   x = 187,163,060.64/12,757.56
6. Step 6: Final answer
   x = 14,670.76