Finding the Fourth Proportional to 23,870.57, 35,815.97 and 12,774.38

Step by Step Solution

1. Step 1: Write the proportion equation
   23,870.57 : 35,815.97 = 12,774.38 : x
2. Step 2: Convert to fraction form
   23,870.57/35,815.97 = 12,774.38/x
3. Step 3: Cross multiply
   23,870.57x = 35,815.97 × 12,774.38
4. Step 4: Simplify right side
   23,870.57x = 457,526,810.85
5. Step 5: Solve for x
   x = 457,526,810.85/23,870.57
6. Step 6: Final answer
   x = 19,166.98