Finding the Fourth Proportional to 21,429.81, 32,144.71 and 9,746.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,429.81 : 32,144.71 = 9,746.37 : x
2. Step 2: Convert to fraction form
   21,429.81/32,144.71 = 9,746.37/x
3. Step 3: Cross multiply
   21,429.81x = 32,144.71 × 9,746.37
4. Step 4: Simplify right side
   21,429.81x = 313,294,237.20
5. Step 5: Solve for x
   x = 313,294,237.20/21,429.81
6. Step 6: Final answer
   x = 14,619.55