Finding the Fourth Proportional to 10,245.63, 14,102.27 and 7,256.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.63 : 14,102.27 = 7,256.30 : x
2. Step 2: Convert to fraction form
   10,245.63/14,102.27 = 7,256.30/x
3. Step 3: Cross multiply
   10,245.63x = 14,102.27 × 7,256.30
4. Step 4: Simplify right side
   10,245.63x = 102,330,222.22
5. Step 5: Solve for x
   x = 102,330,222.22/10,245.63
6. Step 6: Final answer
   x = 9,987.69