Finding the Fourth Proportional to 8,960.47, 12,364.56 and 4,981.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,960.47 : 12,364.56 = 4,981.20 : x
2. Step 2: Convert to fraction form
   8,960.47/12,364.56 = 4,981.20/x
3. Step 3: Cross multiply
   8,960.47x = 12,364.56 × 4,981.20
4. Step 4: Simplify right side
   8,960.47x = 61,590,346.27
5. Step 5: Solve for x
   x = 61,590,346.27/8,960.47
6. Step 6: Final answer
   x = 6,873.56