Finding the Fourth Proportional to 10,647.45, 14,682.47 and 10,406.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,647.45 : 14,682.47 = 10,406.07 : x
2. Step 2: Convert to fraction form
   10,647.45/14,682.47 = 10,406.07/x
3. Step 3: Cross multiply
   10,647.45x = 14,682.47 × 10,406.07
4. Step 4: Simplify right side
   10,647.45x = 152,786,758.56
5. Step 5: Solve for x
   x = 152,786,758.56/10,647.45
6. Step 6: Final answer
   x = 14,349.61