Finding the Fourth Proportional to 12,176.55, 18,264.71 and 3,856.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,176.55 : 18,264.71 = 3,856.58 : x
2. Step 2: Convert to fraction form
   12,176.55/18,264.71 = 3,856.58/x
3. Step 3: Cross multiply
   12,176.55x = 18,264.71 × 3,856.58
4. Step 4: Simplify right side
   12,176.55x = 70,439,204.69
5. Step 5: Solve for x
   x = 70,439,204.69/12,176.55
6. Step 6: Final answer
   x = 5,784.82