Finding the Fourth Proportional to 9,982.72, 14,977.32 and 4,789

Step by Step Solution

1. Step 1: Write the proportion equation
   9,982.72 : 14,977.32 = 4,789 : x
2. Step 2: Convert to fraction form
   9,982.72/14,977.32 = 4,789/x
3. Step 3: Cross multiply
   9,982.72x = 14,977.32 × 4,789
4. Step 4: Simplify right side
   9,982.72x = 71,726,385.48
5. Step 5: Solve for x
   x = 71,726,385.48/9,982.72
6. Step 6: Final answer
   x = 7,185.05