Finding the Fourth Proportional to 8,072.57, 12,116.55 and 3,914.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,072.57 : 12,116.55 = 3,914.84 : x
2. Step 2: Convert to fraction form
   8,072.57/12,116.55 = 3,914.84/x
3. Step 3: Cross multiply
   8,072.57x = 12,116.55 × 3,914.84
4. Step 4: Simplify right side
   8,072.57x = 47,434,354.60
5. Step 5: Solve for x
   x = 47,434,354.60/8,072.57
6. Step 6: Final answer
   x = 5,875.99