Finding the Fourth Proportional to 10,256.25, 15,303.88 and 9,629.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256.25 : 15,303.88 = 9,629.31 : x
2. Step 2: Convert to fraction form
   10,256.25/15,303.88 = 9,629.31/x
3. Step 3: Cross multiply
   10,256.25x = 15,303.88 × 9,629.31
4. Step 4: Simplify right side
   10,256.25x = 147,365,756.58
5. Step 5: Solve for x
   x = 147,365,756.58/10,256.25
6. Step 6: Final answer
   x = 14,368.39