Finding the Fourth Proportional to 10,659.96, 14,632.47 and 9,454.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,659.96 : 14,632.47 = 9,454.68 : x
2. Step 2: Convert to fraction form
   10,659.96/14,632.47 = 9,454.68/x
3. Step 3: Cross multiply
   10,659.96x = 14,632.47 × 9,454.68
4. Step 4: Simplify right side
   10,659.96x = 138,345,321.46
5. Step 5: Solve for x
   x = 138,345,321.46/10,659.96
6. Step 6: Final answer
   x = 12,978.03