Finding the Fourth Proportional to 8,779.48, 12,103.38 and 5,980.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,779.48 : 12,103.38 = 5,980.12 : x
2. Step 2: Convert to fraction form
   8,779.48/12,103.38 = 5,980.12/x
3. Step 3: Cross multiply
   8,779.48x = 12,103.38 × 5,980.12
4. Step 4: Simplify right side
   8,779.48x = 72,379,664.81
5. Step 5: Solve for x
   x = 72,379,664.81/8,779.48
6. Step 6: Final answer
   x = 8,244.19