Finding the Fourth Proportional to 42,811.30, 59,103.35 and 25,819.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,811.30 : 59,103.35 = 25,819.86 : x
2. Step 2: Convert to fraction form
   42,811.30/59,103.35 = 25,819.86/x
3. Step 3: Cross multiply
   42,811.30x = 59,103.35 × 25,819.86
4. Step 4: Simplify right side
   42,811.30x = 1,526,040,222.53
5. Step 5: Solve for x
   x = 1,526,040,222.53/42,811.30
6. Step 6: Final answer
   x = 35,645.73