Finding the Fourth Proportional to 10,487.48, 14,472.45 and 5,707.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.48 : 14,472.45 = 5,707.22 : x
2. Step 2: Convert to fraction form
   10,487.48/14,472.45 = 5,707.22/x
3. Step 3: Cross multiply
   10,487.48x = 14,472.45 × 5,707.22
4. Step 4: Simplify right side
   10,487.48x = 82,597,383.73
5. Step 5: Solve for x
   x = 82,597,383.73/10,487.48
6. Step 6: Final answer
   x = 7,875.81