Finding the Fourth Proportional to 7,085.46, 10,622.90 and 4,887.92

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.46 : 10,622.90 = 4,887.92 : x
2. Step 2: Convert to fraction form
   7,085.46/10,622.90 = 4,887.92/x
3. Step 3: Cross multiply
   7,085.46x = 10,622.90 × 4,887.92
4. Step 4: Simplify right side
   7,085.46x = 51,923,885.37
5. Step 5: Solve for x
   x = 51,923,885.37/7,085.46
6. Step 6: Final answer
   x = 7,328.23