Finding the Fourth Proportional to 13,089.34, 18,063.57 and 7,500.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,089.34 : 18,063.57 = 7,500.34 : x
2. Step 2: Convert to fraction form
   13,089.34/18,063.57 = 7,500.34/x
3. Step 3: Cross multiply
   13,089.34x = 18,063.57 × 7,500.34
4. Step 4: Simplify right side
   13,089.34x = 135,482,916.61
5. Step 5: Solve for x
   x = 135,482,916.61/13,089.34
6. Step 6: Final answer
   x = 10,350.63