Finding the Fourth Proportional to 9,837.72, 14,756.76 and 3,990.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,837.72 : 14,756.76 = 3,990.24 : x
2. Step 2: Convert to fraction form
   9,837.72/14,756.76 = 3,990.24/x
3. Step 3: Cross multiply
   9,837.72x = 14,756.76 × 3,990.24
4. Step 4: Simplify right side
   9,837.72x = 58,883,014.02
5. Step 5: Solve for x
   x = 58,883,014.02/9,837.72
6. Step 6: Final answer
   x = 5,985.43