Finding the Fourth Proportional to 9,425.69, 13,007.61 and 5,177.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,425.69 : 13,007.61 = 5,177.15 : x
2. Step 2: Convert to fraction form
   9,425.69/13,007.61 = 5,177.15/x
3. Step 3: Cross multiply
   9,425.69x = 13,007.61 × 5,177.15
4. Step 4: Simplify right side
   9,425.69x = 67,342,283.07
5. Step 5: Solve for x
   x = 67,342,283.07/9,425.69
6. Step 6: Final answer
   x = 7,144.55