Finding the Fourth Proportional to 8,810.68, 12,156.96 and 5,980.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,810.68 : 12,156.96 = 5,980.30 : x
2. Step 2: Convert to fraction form
   8,810.68/12,156.96 = 5,980.30/x
3. Step 3: Cross multiply
   8,810.68x = 12,156.96 × 5,980.30
4. Step 4: Simplify right side
   8,810.68x = 72,702,267.89
5. Step 5: Solve for x
   x = 72,702,267.89/8,810.68
6. Step 6: Final answer
   x = 8,251.61