Finding the Fourth Proportional to 9,963.72, 13,749.30 and 5,985

Step by Step Solution

1. Step 1: Write the proportion equation
   9,963.72 : 13,749.30 = 5,985 : x
2. Step 2: Convert to fraction form
   9,963.72/13,749.30 = 5,985/x
3. Step 3: Cross multiply
   9,963.72x = 13,749.30 × 5,985
4. Step 4: Simplify right side
   9,963.72x = 82,289,560.50
5. Step 5: Solve for x
   x = 82,289,560.50/9,963.72
6. Step 6: Final answer
   x = 8,258.92