Finding the Fourth Proportional to 9,443.60, 14,166.78 and 3,518.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,443.60 : 14,166.78 = 3,518.98 : x
2. Step 2: Convert to fraction form
   9,443.60/14,166.78 = 3,518.98/x
3. Step 3: Cross multiply
   9,443.60x = 14,166.78 × 3,518.98
4. Step 4: Simplify right side
   9,443.60x = 49,852,615.48
5. Step 5: Solve for x
   x = 49,852,615.48/9,443.60
6. Step 6: Final answer
   x = 5,278.98