Finding the Fourth Proportional to 9,859.46, 14,780.38 and 3,618.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,859.46 : 14,780.38 = 3,618.03 : x
2. Step 2: Convert to fraction form
   9,859.46/14,780.38 = 3,618.03/x
3. Step 3: Cross multiply
   9,859.46x = 14,780.38 × 3,618.03
4. Step 4: Simplify right side
   9,859.46x = 53,475,793.78
5. Step 5: Solve for x
   x = 53,475,793.78/9,859.46
6. Step 6: Final answer
   x = 5,423.80