Finding the Fourth Proportional to 8,050.86, 12,081.42 and 7,442.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,050.86 : 12,081.42 = 7,442.15 : x
2. Step 2: Convert to fraction form
   8,050.86/12,081.42 = 7,442.15/x
3. Step 3: Cross multiply
   8,050.86x = 12,081.42 × 7,442.15
4. Step 4: Simplify right side
   8,050.86x = 89,911,679.45
5. Step 5: Solve for x
   x = 89,911,679.45/8,050.86
6. Step 6: Final answer
   x = 11,167.96