Finding the Fourth Proportional to 9,890.48, 14,826.72 and 3,646.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,890.48 : 14,826.72 = 3,646.14 : x
2. Step 2: Convert to fraction form
   9,890.48/14,826.72 = 3,646.14/x
3. Step 3: Cross multiply
   9,890.48x = 14,826.72 × 3,646.14
4. Step 4: Simplify right side
   9,890.48x = 54,060,286.38
5. Step 5: Solve for x
   x = 54,060,286.38/9,890.48
6. Step 6: Final answer
   x = 5,465.89