Finding the Fourth Proportional to 6,085.56, 9,139.86 and 4,357.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,085.56 : 9,139.86 = 4,357.56 : x
2. Step 2: Convert to fraction form
   6,085.56/9,139.86 = 4,357.56/x
3. Step 3: Cross multiply
   6,085.56x = 9,139.86 × 4,357.56
4. Step 4: Simplify right side
   6,085.56x = 39,827,488.34
5. Step 5: Solve for x
   x = 39,827,488.34/6,085.56
6. Step 6: Final answer
   x = 6,544.59