Finding the Fourth Proportional to 42,797.76, 59,036.16 and 25,790.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,797.76 : 59,036.16 = 25,790.40 : x
2. Step 2: Convert to fraction form
   42,797.76/59,036.16 = 25,790.40/x
3. Step 3: Cross multiply
   42,797.76x = 59,036.16 × 25,790.40
4. Step 4: Simplify right side
   42,797.76x = 1,522,566,180.86
5. Step 5: Solve for x
   x = 1,522,566,180.86/42,797.76
6. Step 6: Final answer
   x = 35,575.84