Finding the Fourth Proportional to 9,171.63, 13,735.58 and 5,005.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,171.63 : 13,735.58 = 5,005.40 : x
2. Step 2: Convert to fraction form
   9,171.63/13,735.58 = 5,005.40/x
3. Step 3: Cross multiply
   9,171.63x = 13,735.58 × 5,005.40
4. Step 4: Simplify right side
   9,171.63x = 68,751,978.43
5. Step 5: Solve for x
   x = 68,751,978.43/9,171.63
6. Step 6: Final answer
   x = 7,496.16