Finding the Fourth Proportional to 8,180.34, 12,261.06 and 3,788.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,180.34 : 12,261.06 = 3,788.61 : x
2. Step 2: Convert to fraction form
   8,180.34/12,261.06 = 3,788.61/x
3. Step 3: Cross multiply
   8,180.34x = 12,261.06 × 3,788.61
4. Step 4: Simplify right side
   8,180.34x = 46,452,374.53
5. Step 5: Solve for x
   x = 46,452,374.53/8,180.34
6. Step 6: Final answer
   x = 5,678.54