Finding the Fourth Proportional to 12,784.09, 17,642.06 and 7,479.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.09 : 17,642.06 = 7,479.94 : x
2. Step 2: Convert to fraction form
   12,784.09/17,642.06 = 7,479.94/x
3. Step 3: Cross multiply
   12,784.09x = 17,642.06 × 7,479.94
4. Step 4: Simplify right side
   12,784.09x = 131,961,550.28
5. Step 5: Solve for x
   x = 131,961,550.28/12,784.09
6. Step 6: Final answer
   x = 10,322.33