Finding the Fourth Proportional to 12,383.83, 17,069.70 and 10,141.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,383.83 : 17,069.70 = 10,141.75 : x
2. Step 2: Convert to fraction form
   12,383.83/17,069.70 = 10,141.75/x
3. Step 3: Cross multiply
   12,383.83x = 17,069.70 × 10,141.75
4. Step 4: Simplify right side
   12,383.83x = 173,116,629.98
5. Step 5: Solve for x
   x = 173,116,629.98/12,383.83
6. Step 6: Final answer
   x = 13,979.25