Finding the Fourth Proportional to 13,500.49, 18,630.72 and 7,532.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,500.49 : 18,630.72 = 7,532.55 : x
2. Step 2: Convert to fraction form
   13,500.49/18,630.72 = 7,532.55/x
3. Step 3: Cross multiply
   13,500.49x = 18,630.72 × 7,532.55
4. Step 4: Simplify right side
   13,500.49x = 140,336,829.94
5. Step 5: Solve for x
   x = 140,336,829.94/13,500.49
6. Step 6: Final answer
   x = 10,394.94