Finding the Fourth Proportional to 12,706.56, 19,065.60 and 6,462.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,706.56 : 19,065.60 = 6,462.72 : x
2. Step 2: Convert to fraction form
   12,706.56/19,065.60 = 6,462.72/x
3. Step 3: Cross multiply
   12,706.56x = 19,065.60 × 6,462.72
4. Step 4: Simplify right side
   12,706.56x = 123,215,634.43
5. Step 5: Solve for x
   x = 123,215,634.43/12,706.56
6. Step 6: Final answer
   x = 9,697.01