Finding the Fourth Proportional to 8,106.32, 12,156.50 and 3,945.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,106.32 : 12,156.50 = 3,945.08 : x
2. Step 2: Convert to fraction form
   8,106.32/12,156.50 = 3,945.08/x
3. Step 3: Cross multiply
   8,106.32x = 12,156.50 × 3,945.08
4. Step 4: Simplify right side
   8,106.32x = 47,958,365.02
5. Step 5: Solve for x
   x = 47,958,365.02/8,106.32
6. Step 6: Final answer
   x = 5,916.17