Finding the Fourth Proportional to 6,769.30, 10,139.55 and 5,617.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,769.30 : 10,139.55 = 5,617.30 : x
2. Step 2: Convert to fraction form
   6,769.30/10,139.55 = 5,617.30/x
3. Step 3: Cross multiply
   6,769.30x = 10,139.55 × 5,617.30
4. Step 4: Simplify right side
   6,769.30x = 56,956,894.22
5. Step 5: Solve for x
   x = 56,956,894.22/6,769.30
6. Step 6: Final answer
   x = 8,414.00