Finding the Fourth Proportional to 17,153.12, 23,658.60 and 12,112.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,153.12 : 23,658.60 = 12,112.10 : x
2. Step 2: Convert to fraction form
   17,153.12/23,658.60 = 12,112.10/x
3. Step 3: Cross multiply
   17,153.12x = 23,658.60 × 12,112.10
4. Step 4: Simplify right side
   17,153.12x = 286,555,329.06
5. Step 5: Solve for x
   x = 286,555,329.06/17,153.12
6. Step 6: Final answer
   x = 16,705.73