Finding the Fourth Proportional to 13,503.59, 18,635.31 and 7,535.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,503.59 : 18,635.31 = 7,535.24 : x
2. Step 2: Convert to fraction form
   13,503.59/18,635.31 = 7,535.24/x
3. Step 3: Cross multiply
   13,503.59x = 18,635.31 × 7,535.24
4. Step 4: Simplify right side
   13,503.59x = 140,421,440.15
5. Step 5: Solve for x
   x = 140,421,440.15/13,503.59
6. Step 6: Final answer
   x = 10,398.83