Finding the Fourth Proportional to 13,046.04, 18,000.72 and 7,742.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.04 : 18,000.72 = 7,742.62 : x
2. Step 2: Convert to fraction form
   13,046.04/18,000.72 = 7,742.62/x
3. Step 3: Cross multiply
   13,046.04x = 18,000.72 × 7,742.62
4. Step 4: Simplify right side
   13,046.04x = 139,372,734.69
5. Step 5: Solve for x
   x = 139,372,734.69/13,046.04
6. Step 6: Final answer
   x = 10,683.14