Finding the Fourth Proportional to 13,241.58, 18,271.35 and 7,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,241.58 : 18,271.35 = 7,651.50 : x
2. Step 2: Convert to fraction form
   13,241.58/18,271.35 = 7,651.50/x
3. Step 3: Cross multiply
   13,241.58x = 18,271.35 × 7,651.50
4. Step 4: Simplify right side
   13,241.58x = 139,803,234.53
5. Step 5: Solve for x
   x = 139,803,234.53/13,241.58
6. Step 6: Final answer
   x = 10,557.90