Finding the Fourth Proportional to 9,792.39, 14,690.76 and 3,218.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,792.39 : 14,690.76 = 3,218.31 : x
2. Step 2: Convert to fraction form
   9,792.39/14,690.76 = 3,218.31/x
3. Step 3: Cross multiply
   9,792.39x = 14,690.76 × 3,218.31
4. Step 4: Simplify right side
   9,792.39x = 47,279,419.82
5. Step 5: Solve for x
   x = 47,279,419.82/9,792.39
6. Step 6: Final answer
   x = 4,828.18