Finding the Fourth Proportional to 12,081.73, 18,128.79 and 5,847.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.73 : 18,128.79 = 5,847.10 : x
2. Step 2: Convert to fraction form
   12,081.73/18,128.79 = 5,847.10/x
3. Step 3: Cross multiply
   12,081.73x = 18,128.79 × 5,847.10
4. Step 4: Simplify right side
   12,081.73x = 106,000,848.01
5. Step 5: Solve for x
   x = 106,000,848.01/12,081.73
6. Step 6: Final answer
   x = 8,773.65