Finding the Fourth Proportional to 6,109.67, 8,430.84 and 3,591.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.67 : 8,430.84 = 3,591.89 : x
2. Step 2: Convert to fraction form
   6,109.67/8,430.84 = 3,591.89/x
3. Step 3: Cross multiply
   6,109.67x = 8,430.84 × 3,591.89
4. Step 4: Simplify right side
   6,109.67x = 30,282,639.35
5. Step 5: Solve for x
   x = 30,282,639.35/6,109.67
6. Step 6: Final answer
   x = 4,956.51