Finding the Fourth Proportional to 13,932.96, 19,227.72 and 7,645.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,932.96 : 19,227.72 = 7,645.92 : x
2. Step 2: Convert to fraction form
   13,932.96/19,227.72 = 7,645.92/x
3. Step 3: Cross multiply
   13,932.96x = 19,227.72 × 7,645.92
4. Step 4: Simplify right side
   13,932.96x = 147,013,608.90
5. Step 5: Solve for x
   x = 147,013,608.90/13,932.96
6. Step 6: Final answer
   x = 10,551.50