Finding the Fourth Proportional to 9,523.40, 13,141.32 and 5,490.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,523.40 : 13,141.32 = 5,490.68 : x
2. Step 2: Convert to fraction form
   9,523.40/13,141.32 = 5,490.68/x
3. Step 3: Cross multiply
   9,523.40x = 13,141.32 × 5,490.68
4. Step 4: Simplify right side
   9,523.40x = 72,154,782.90
5. Step 5: Solve for x
   x = 72,154,782.90/9,523.40
6. Step 6: Final answer
   x = 7,576.58