Finding the Fourth Proportional to 7,085.79, 10,623.49 and 3,574.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.79 : 10,623.49 = 3,574.06 : x
2. Step 2: Convert to fraction form
   7,085.79/10,623.49 = 3,574.06/x
3. Step 3: Cross multiply
   7,085.79x = 10,623.49 × 3,574.06
4. Step 4: Simplify right side
   7,085.79x = 37,968,955.18
5. Step 5: Solve for x
   x = 37,968,955.18/7,085.79
6. Step 6: Final answer
   x = 5,358.46