Finding the Fourth Proportional to 9,162.56, 12,644.35 and 4,970.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.56 : 12,644.35 = 4,970.81 : x
2. Step 2: Convert to fraction form
   9,162.56/12,644.35 = 4,970.81/x
3. Step 3: Cross multiply
   9,162.56x = 12,644.35 × 4,970.81
4. Step 4: Simplify right side
   9,162.56x = 62,852,680.61
5. Step 5: Solve for x
   x = 62,852,680.61/9,162.56
6. Step 6: Final answer
   x = 6,859.73