Finding the Fourth Proportional to 59,586.72, 89,394.84 and 42,739.44

Step by Step Solution

1. Step 1: Write the proportion equation
   59,586.72 : 89,394.84 = 42,739.44 : x
2. Step 2: Convert to fraction form
   59,586.72/89,394.84 = 42,739.44/x
3. Step 3: Cross multiply
   59,586.72x = 89,394.84 × 42,739.44
4. Step 4: Simplify right side
   59,586.72x = 3,820,685,400.49
5. Step 5: Solve for x
   x = 3,820,685,400.49/59,586.72
6. Step 6: Final answer
   x = 64,119.75