Finding the Fourth Proportional to 8,484.83, 12,706.47 and 5,979.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,484.83 : 12,706.47 = 5,979.86 : x
2. Step 2: Convert to fraction form
   8,484.83/12,706.47 = 5,979.86/x
3. Step 3: Cross multiply
   8,484.83x = 12,706.47 × 5,979.86
4. Step 4: Simplify right side
   8,484.83x = 75,982,895.81
5. Step 5: Solve for x
   x = 75,982,895.81/8,484.83
6. Step 6: Final answer
   x = 8,955.14