Finding the Fourth Proportional to 13,495.42, 18,622.88 and 7,527.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,495.42 : 18,622.88 = 7,527.50 : x
2. Step 2: Convert to fraction form
   13,495.42/18,622.88 = 7,527.50/x
3. Step 3: Cross multiply
   13,495.42x = 18,622.88 × 7,527.50
4. Step 4: Simplify right side
   13,495.42x = 140,183,636.09
5. Step 5: Solve for x
   x = 140,183,636.09/13,495.42
6. Step 6: Final answer
   x = 10,387.50