Finding the Fourth Proportional to 8,105.25, 12,161.54 and 4,642.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.25 : 12,161.54 = 4,642.50 : x
2. Step 2: Convert to fraction form
   8,105.25/12,161.54 = 4,642.50/x
3. Step 3: Cross multiply
   8,105.25x = 12,161.54 × 4,642.50
4. Step 4: Simplify right side
   8,105.25x = 56,459,926.24
5. Step 5: Solve for x
   x = 56,459,926.24/8,105.25
6. Step 6: Final answer
   x = 6,965.85