Finding the Fourth Proportional to 13,995.72, 19,313.82 and 7,707.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,995.72 : 19,313.82 = 7,707.96 : x
2. Step 2: Convert to fraction form
   13,995.72/19,313.82 = 7,707.96/x
3. Step 3: Cross multiply
   13,995.72x = 19,313.82 × 7,707.96
4. Step 4: Simplify right side
   13,995.72x = 148,870,152.01
5. Step 5: Solve for x
   x = 148,870,152.01/13,995.72
6. Step 6: Final answer
   x = 10,636.83