Finding the Fourth Proportional to 14,005.56, 19,326.96 and 7,716.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,005.56 : 19,326.96 = 7,716.72 : x
2. Step 2: Convert to fraction form
   14,005.56/19,326.96 = 7,716.72/x
3. Step 3: Cross multiply
   14,005.56x = 19,326.96 × 7,716.72
4. Step 4: Simplify right side
   14,005.56x = 149,140,738.77
5. Step 5: Solve for x
   x = 149,140,738.77/14,005.56
6. Step 6: Final answer
   x = 10,648.68