Finding the Fourth Proportional to 12,801.04, 17,651.98 and 10,107.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,801.04 : 17,651.98 = 10,107.79 : x
2. Step 2: Convert to fraction form
   12,801.04/17,651.98 = 10,107.79/x
3. Step 3: Cross multiply
   12,801.04x = 17,651.98 × 10,107.79
4. Step 4: Simplify right side
   12,801.04x = 178,422,418.57
5. Step 5: Solve for x
   x = 178,422,418.57/12,801.04
6. Step 6: Final answer
   x = 13,938.12