Finding the Fourth Proportional to 8,707.72, 12,015.30 and 4,981

Step by Step Solution

1. Step 1: Write the proportion equation
   8,707.72 : 12,015.30 = 4,981 : x
2. Step 2: Convert to fraction form
   8,707.72/12,015.30 = 4,981/x
3. Step 3: Cross multiply
   8,707.72x = 12,015.30 × 4,981
4. Step 4: Simplify right side
   8,707.72x = 59,848,209.30
5. Step 5: Solve for x
   x = 59,848,209.30/8,707.72
6. Step 6: Final answer
   x = 6,873.01