Finding the Fourth Proportional to 25,312.38, 34,930.38 and 13,981.67

Step by Step Solution

1. Step 1: Write the proportion equation
   25,312.38 : 34,930.38 = 13,981.67 : x
2. Step 2: Convert to fraction form
   25,312.38/34,930.38 = 13,981.67/x
3. Step 3: Cross multiply
   25,312.38x = 34,930.38 × 13,981.67
4. Step 4: Simplify right side
   25,312.38x = 488,385,185.89
5. Step 5: Solve for x
   x = 488,385,185.89/25,312.38
6. Step 6: Final answer
   x = 19,294.32