Finding the Fourth Proportional to 9,990.86, 14,982.38 and 3,747.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,990.86 : 14,982.38 = 3,747.46 : x
2. Step 2: Convert to fraction form
   9,990.86/14,982.38 = 3,747.46/x
3. Step 3: Cross multiply
   9,990.86x = 14,982.38 × 3,747.46
4. Step 4: Simplify right side
   9,990.86x = 56,145,869.75
5. Step 5: Solve for x
   x = 56,145,869.75/9,990.86
6. Step 6: Final answer
   x = 5,619.72