Finding the Fourth Proportional to 23,085.95, 31,858.50 and 12,475.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085.95 : 31,858.50 = 12,475.55 : x
2. Step 2: Convert to fraction form
   23,085.95/31,858.50 = 12,475.55/x
3. Step 3: Cross multiply
   23,085.95x = 31,858.50 × 12,475.55
4. Step 4: Simplify right side
   23,085.95x = 397,452,389.32
5. Step 5: Solve for x
   x = 397,452,389.32/23,085.95
6. Step 6: Final answer
   x = 17,216.21