Finding the Fourth Proportional to 9,495.39, 13,103.63 and 5,188.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,495.39 : 13,103.63 = 5,188.55 : x
2. Step 2: Convert to fraction form
   9,495.39/13,103.63 = 5,188.55/x
3. Step 3: Cross multiply
   9,495.39x = 13,103.63 × 5,188.55
4. Step 4: Simplify right side
   9,495.39x = 67,988,747.98
5. Step 5: Solve for x
   x = 67,988,747.98/9,495.39
6. Step 6: Final answer
   x = 7,160.18