Finding the Fourth Proportional to 12,931.72, 17,844.98 and 7,626.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,931.72 : 17,844.98 = 7,626.76 : x
2. Step 2: Convert to fraction form
   12,931.72/17,844.98 = 7,626.76/x
3. Step 3: Cross multiply
   12,931.72x = 17,844.98 × 7,626.76
4. Step 4: Simplify right side
   12,931.72x = 136,099,379.66
5. Step 5: Solve for x
   x = 136,099,379.66/12,931.72
6. Step 6: Final answer
   x = 10,524.46