Finding the Fourth Proportional to 25,401.05, 35,053.05 and 13,915.87

Step by Step Solution

1. Step 1: Write the proportion equation
   25,401.05 : 35,053.05 = 13,915.87 : x
2. Step 2: Convert to fraction form
   25,401.05/35,053.05 = 13,915.87/x
3. Step 3: Cross multiply
   25,401.05x = 35,053.05 × 13,915.87
4. Step 4: Simplify right side
   25,401.05x = 487,793,651.46
5. Step 5: Solve for x
   x = 487,793,651.46/25,401.05
6. Step 6: Final answer
   x = 19,203.68