Finding the Fourth Proportional to 12,964.37, 19,450.59 and 4,644.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,964.37 : 19,450.59 = 4,644.46 : x
2. Step 2: Convert to fraction form
   12,964.37/19,450.59 = 4,644.46/x
3. Step 3: Cross multiply
   12,964.37x = 19,450.59 × 4,644.46
4. Step 4: Simplify right side
   12,964.37x = 90,337,366.76
5. Step 5: Solve for x
   x = 90,337,366.76/12,964.37
6. Step 6: Final answer
   x = 6,968.13