Finding the Fourth Proportional to 23,085.62, 31,858.13 and 12,475.25

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085.62 : 31,858.13 = 12,475.25 : x
2. Step 2: Convert to fraction form
   23,085.62/31,858.13 = 12,475.25/x
3. Step 3: Cross multiply
   23,085.62x = 31,858.13 × 12,475.25
4. Step 4: Simplify right side
   23,085.62x = 397,437,914.62
5. Step 5: Solve for x
   x = 397,437,914.62/23,085.62
6. Step 6: Final answer
   x = 17,215.83