Finding the Fourth Proportional to 9,439.97, 13,025.90 and 5,459.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,439.97 : 13,025.90 = 5,459.63 : x
2. Step 2: Convert to fraction form
   9,439.97/13,025.90 = 5,459.63/x
3. Step 3: Cross multiply
   9,439.97x = 13,025.90 × 5,459.63
4. Step 4: Simplify right side
   9,439.97x = 71,116,567.12
5. Step 5: Solve for x
   x = 71,116,567.12/9,439.97
6. Step 6: Final answer
   x = 7,533.56