Finding the Fourth Proportional to 6,109.17, 8,430.56 and 3,591.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.17 : 8,430.56 = 3,591.56 : x
2. Step 2: Convert to fraction form
   6,109.17/8,430.56 = 3,591.56/x
3. Step 3: Cross multiply
   6,109.17x = 8,430.56 × 3,591.56
4. Step 4: Simplify right side
   6,109.17x = 30,278,878.66
5. Step 5: Solve for x
   x = 30,278,878.66/6,109.17
6. Step 6: Final answer
   x = 4,956.30