Finding the Fourth Proportional to 13,500.66, 18,630.86 and 7,531.97

Step by Step Solution

1. Step 1: Write the proportion equation
   13,500.66 : 18,630.86 = 7,531.97 : x
2. Step 2: Convert to fraction form
   13,500.66/18,630.86 = 7,531.97/x
3. Step 3: Cross multiply
   13,500.66x = 18,630.86 × 7,531.97
4. Step 4: Simplify right side
   13,500.66x = 140,326,947.78
5. Step 5: Solve for x
   x = 140,326,947.78/13,500.66
6. Step 6: Final answer
   x = 10,394.08