Finding the Fourth Proportional to 25,762.32, 35,559 and 15,155.37

Step by Step Solution

1. Step 1: Write the proportion equation
   25,762.32 : 35,559 = 15,155.37 : x
2. Step 2: Convert to fraction form
   25,762.32/35,559 = 15,155.37/x
3. Step 3: Cross multiply
   25,762.32x = 35,559 × 15,155.37
4. Step 4: Simplify right side
   25,762.32x = 538,909,801.83
5. Step 5: Solve for x
   x = 538,909,801.83/25,762.32
6. Step 6: Final answer
   x = 20,918.53