Finding the Fourth Proportional to 5,492.30, 7,580.27 and 4,085.33

Step by Step Solution

1. Step 1: Write the proportion equation
   5,492.30 : 7,580.27 = 4,085.33 : x
2. Step 2: Convert to fraction form
   5,492.30/7,580.27 = 4,085.33/x
3. Step 3: Cross multiply
   5,492.30x = 7,580.27 × 4,085.33
4. Step 4: Simplify right side
   5,492.30x = 30,967,933.60
5. Step 5: Solve for x
   x = 30,967,933.60/5,492.30
6. Step 6: Final answer
   x = 5,638.42