Finding the Fourth Proportional to 25,142.26, 34,696.55 and 13,812

Step by Step Solution

1. Step 1: Write the proportion equation
   25,142.26 : 34,696.55 = 13,812 : x
2. Step 2: Convert to fraction form
   25,142.26/34,696.55 = 13,812/x
3. Step 3: Cross multiply
   25,142.26x = 34,696.55 × 13,812
4. Step 4: Simplify right side
   25,142.26x = 479,228,748.60
5. Step 5: Solve for x
   x = 479,228,748.60/25,142.26
6. Step 6: Final answer
   x = 19,060.69