Finding the Fourth Proportional to 9,175.31, 12,663.01 and 5,449.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,175.31 : 12,663.01 = 5,449.31 : x
2. Step 2: Convert to fraction form
   9,175.31/12,663.01 = 5,449.31/x
3. Step 3: Cross multiply
   9,175.31x = 12,663.01 × 5,449.31
4. Step 4: Simplify right side
   9,175.31x = 69,004,705.49
5. Step 5: Solve for x
   x = 69,004,705.49/9,175.31
6. Step 6: Final answer
   x = 7,520.69