Finding the Fourth Proportional to 8,091.83, 12,112.61 and 4,384.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,091.83 : 12,112.61 = 4,384.87 : x
2. Step 2: Convert to fraction form
   8,091.83/12,112.61 = 4,384.87/x
3. Step 3: Cross multiply
   8,091.83x = 12,112.61 × 4,384.87
4. Step 4: Simplify right side
   8,091.83x = 53,112,168.00
5. Step 5: Solve for x
   x = 53,112,168.00/8,091.83
6. Step 6: Final answer
   x = 6,563.68