Finding the Fourth Proportional to 12,434.88, 18,651.69 and 4,643.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,434.88 : 18,651.69 = 4,643.10 : x
2. Step 2: Convert to fraction form
   12,434.88/18,651.69 = 4,643.10/x
3. Step 3: Cross multiply
   12,434.88x = 18,651.69 × 4,643.10
4. Step 4: Simplify right side
   12,434.88x = 86,601,661.84
5. Step 5: Solve for x
   x = 86,601,661.84/12,434.88
6. Step 6: Final answer
   x = 6,964.41