Finding the Fourth Proportional to 7,443.18, 10,270.95 and 4,085.99

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.18 : 10,270.95 = 4,085.99 : x
2. Step 2: Convert to fraction form
   7,443.18/10,270.95 = 4,085.99/x
3. Step 3: Cross multiply
   7,443.18x = 10,270.95 × 4,085.99
4. Step 4: Simplify right side
   7,443.18x = 41,966,947.64
5. Step 5: Solve for x
   x = 41,966,947.64/7,443.18
6. Step 6: Final answer
   x = 5,638.31