Finding the Fourth Proportional to 8,050.86, 12,078.18 and 3,120.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,050.86 : 12,078.18 = 3,120.93 : x
2. Step 2: Convert to fraction form
   8,050.86/12,078.18 = 3,120.93/x
3. Step 3: Cross multiply
   8,050.86x = 12,078.18 × 3,120.93
4. Step 4: Simplify right side
   8,050.86x = 37,695,154.31
5. Step 5: Solve for x
   x = 37,695,154.31/8,050.86
6. Step 6: Final answer
   x = 4,682.13