Finding the Fourth Proportional to 9,920.10, 14,887.34 and 3,681

Step by Step Solution

1. Step 1: Write the proportion equation
   9,920.10 : 14,887.34 = 3,681 : x
2. Step 2: Convert to fraction form
   9,920.10/14,887.34 = 3,681/x
3. Step 3: Cross multiply
   9,920.10x = 14,887.34 × 3,681
4. Step 4: Simplify right side
   9,920.10x = 54,800,293.94
5. Step 5: Solve for x
   x = 54,800,293.94/9,920.10
6. Step 6: Final answer
   x = 5,524.17