Finding the Fourth Proportional to 8,061.15, 12,069.85 and 4,157.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,061.15 : 12,069.85 = 4,157.35 : x
2. Step 2: Convert to fraction form
   8,061.15/12,069.85 = 4,157.35/x
3. Step 3: Cross multiply
   8,061.15x = 12,069.85 × 4,157.35
4. Step 4: Simplify right side
   8,061.15x = 50,178,586.22
5. Step 5: Solve for x
   x = 50,178,586.22/8,061.15
6. Step 6: Final answer
   x = 6,224.75