Finding the Fourth Proportional to 9,889.57, 14,834.34 and 2,964.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,889.57 : 14,834.34 = 2,964.07 : x
2. Step 2: Convert to fraction form
   9,889.57/14,834.34 = 2,964.07/x
3. Step 3: Cross multiply
   9,889.57x = 14,834.34 × 2,964.07
4. Step 4: Simplify right side
   9,889.57x = 43,970,022.16
5. Step 5: Solve for x
   x = 43,970,022.16/9,889.57
6. Step 6: Final answer
   x = 4,446.10