Finding the Fourth Proportional to 13,528.43, 18,669.17 and 7,560.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,528.43 : 18,669.17 = 7,560.09 : x
2. Step 2: Convert to fraction form
   13,528.43/18,669.17 = 7,560.09/x
3. Step 3: Cross multiply
   13,528.43x = 18,669.17 × 7,560.09
4. Step 4: Simplify right side
   13,528.43x = 141,140,659.33
5. Step 5: Solve for x
   x = 141,140,659.33/13,528.43
6. Step 6: Final answer
   x = 10,432.90