Finding the Fourth Proportional to 9,981.72, 14,975.82 and 4,788

Step by Step Solution

1. Step 1: Write the proportion equation
   9,981.72 : 14,975.82 = 4,788 : x
2. Step 2: Convert to fraction form
   9,981.72/14,975.82 = 4,788/x
3. Step 3: Cross multiply
   9,981.72x = 14,975.82 × 4,788
4. Step 4: Simplify right side
   9,981.72x = 71,704,226.16
5. Step 5: Solve for x
   x = 71,704,226.16/9,981.72
6. Step 6: Final answer
   x = 7,183.55