Finding the Fourth Proportional to 9,863.16, 14,785.94 and 3,621.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,863.16 : 14,785.94 = 3,621.74 : x
2. Step 2: Convert to fraction form
   9,863.16/14,785.94 = 3,621.74/x
3. Step 3: Cross multiply
   9,863.16x = 14,785.94 × 3,621.74
4. Step 4: Simplify right side
   9,863.16x = 53,550,830.34
5. Step 5: Solve for x
   x = 53,550,830.34/9,863.16
6. Step 6: Final answer
   x = 5,429.38