Finding the Fourth Proportional to 13,498.87, 18,628.50 and 7,530.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,498.87 : 18,628.50 = 7,530.43 : x
2. Step 2: Convert to fraction form
   13,498.87/18,628.50 = 7,530.43/x
3. Step 3: Cross multiply
   13,498.87x = 18,628.50 × 7,530.43
4. Step 4: Simplify right side
   13,498.87x = 140,280,615.26
5. Step 5: Solve for x
   x = 140,280,615.26/13,498.87
6. Step 6: Final answer
   x = 10,392.03