Finding the Fourth Proportional to 13,304.76, 18,361.52 and 7,641.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,304.76 : 18,361.52 = 7,641.15 : x
2. Step 2: Convert to fraction form
   13,304.76/18,361.52 = 7,641.15/x
3. Step 3: Cross multiply
   13,304.76x = 18,361.52 × 7,641.15
4. Step 4: Simplify right side
   13,304.76x = 140,303,090.34
5. Step 5: Solve for x
   x = 140,303,090.34/13,304.76
6. Step 6: Final answer
   x = 10,545.33