Finding the Fourth Proportional to 59,406.72, 81,978.76 and 35,519.28

Step by Step Solution

1. Step 1: Write the proportion equation
   59,406.72 : 81,978.76 = 35,519.28 : x
2. Step 2: Convert to fraction form
   59,406.72/81,978.76 = 35,519.28/x
3. Step 3: Cross multiply
   59,406.72x = 81,978.76 × 35,519.28
4. Step 4: Simplify right side
   59,406.72x = 2,911,826,530.49
5. Step 5: Solve for x
   x = 2,911,826,530.49/59,406.72
6. Step 6: Final answer
   x = 49,015.10