Finding the Fourth Proportional to 6,603.91, 9,107.58 and 4,085.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,603.91 : 9,107.58 = 4,085.62 : x
2. Step 2: Convert to fraction form
   6,603.91/9,107.58 = 4,085.62/x
3. Step 3: Cross multiply
   6,603.91x = 9,107.58 × 4,085.62
4. Step 4: Simplify right side
   6,603.91x = 37,210,111.00
5. Step 5: Solve for x
   x = 37,210,111.00/6,603.91
6. Step 6: Final answer
   x = 5,634.56