Finding the Fourth Proportional to 25,108, 34,649.76 and 13,930.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,108 : 34,649.76 = 13,930.72 : x
2. Step 2: Convert to fraction form
   25,108/34,649.76 = 13,930.72/x
3. Step 3: Cross multiply
   25,108x = 34,649.76 × 13,930.72
4. Step 4: Simplify right side
   25,108x = 482,696,104.63
5. Step 5: Solve for x
   x = 482,696,104.63/25,108
6. Step 6: Final answer
   x = 19,224.79