Finding the Fourth Proportional to 9,162.18, 12,643.83 and 4,970.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.18 : 12,643.83 = 4,970.43 : x
2. Step 2: Convert to fraction form
   9,162.18/12,643.83 = 4,970.43/x
3. Step 3: Cross multiply
   9,162.18x = 12,643.83 × 4,970.43
4. Step 4: Simplify right side
   9,162.18x = 62,845,271.95
5. Step 5: Solve for x
   x = 62,845,271.95/9,162.18
6. Step 6: Final answer
   x = 6,859.21