Finding the Fourth Proportional to 6,300.68, 8,690.60 and 4,059.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,300.68 : 8,690.60 = 4,059.12 : x
2. Step 2: Convert to fraction form
   6,300.68/8,690.60 = 4,059.12/x
3. Step 3: Cross multiply
   6,300.68x = 8,690.60 × 4,059.12
4. Step 4: Simplify right side
   6,300.68x = 35,276,188.27
5. Step 5: Solve for x
   x = 35,276,188.27/6,300.68
6. Step 6: Final answer
   x = 5,598.79