Finding the Fourth Proportional to 10,390.75, 14,334.24 and 7,553.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,390.75 : 14,334.24 = 7,553.72 : x
2. Step 2: Convert to fraction form
   10,390.75/14,334.24 = 7,553.72/x
3. Step 3: Cross multiply
   10,390.75x = 14,334.24 × 7,553.72
4. Step 4: Simplify right side
   10,390.75x = 108,276,835.37
5. Step 5: Solve for x
   x = 108,276,835.37/10,390.75
6. Step 6: Final answer
   x = 10,420.50