Finding the Fourth Proportional to 10,434.42, 15,650.37 and 2,643.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.42 : 15,650.37 = 2,643.30 : x
2. Step 2: Convert to fraction form
   10,434.42/15,650.37 = 2,643.30/x
3. Step 3: Cross multiply
   10,434.42x = 15,650.37 × 2,643.30
4. Step 4: Simplify right side
   10,434.42x = 41,368,623.02
5. Step 5: Solve for x
   x = 41,368,623.02/10,434.42
6. Step 6: Final answer
   x = 3,964.63