Finding the Fourth Proportional to 10,631.72, 14,663.75 and 7,040.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,631.72 : 14,663.75 = 7,040.31 : x
2. Step 2: Convert to fraction form
   10,631.72/14,663.75 = 7,040.31/x
3. Step 3: Cross multiply
   10,631.72x = 14,663.75 × 7,040.31
4. Step 4: Simplify right side
   10,631.72x = 103,237,310.56
5. Step 5: Solve for x
   x = 103,237,310.56/10,631.72
6. Step 6: Final answer
   x = 9,710.32