Finding the Fourth Proportional to 42,759.72, 64,143.84 and 34,936.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,759.72 : 64,143.84 = 34,936.34 : x
2. Step 2: Convert to fraction form
   42,759.72/64,143.84 = 34,936.34/x
3. Step 3: Cross multiply
   42,759.72x = 64,143.84 × 34,936.34
4. Step 4: Simplify right side
   42,759.72x = 2,240,950,682.43
5. Step 5: Solve for x
   x = 2,240,950,682.43/42,759.72
6. Step 6: Final answer
   x = 52,407.98