Finding the Fourth Proportional to 25,401.31, 35,055.06 and 15,329.59

Step by Step Solution

1. Step 1: Write the proportion equation
   25,401.31 : 35,055.06 = 15,329.59 : x
2. Step 2: Convert to fraction form
   25,401.31/35,055.06 = 15,329.59/x
3. Step 3: Cross multiply
   25,401.31x = 35,055.06 × 15,329.59
4. Step 4: Simplify right side
   25,401.31x = 537,379,697.23
5. Step 5: Solve for x
   x = 537,379,697.23/25,401.31
6. Step 6: Final answer
   x = 21,155.59