Finding the Fourth Proportional to 9,890.88, 14,831.54 and 3,653.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,890.88 : 14,831.54 = 3,653.83 : x
2. Step 2: Convert to fraction form
   9,890.88/14,831.54 = 3,653.83/x
3. Step 3: Cross multiply
   9,890.88x = 14,831.54 × 3,653.83
4. Step 4: Simplify right side
   9,890.88x = 54,191,939.77
5. Step 5: Solve for x
   x = 54,191,939.77/9,890.88
6. Step 6: Final answer
   x = 5,478.98