Finding the Fourth Proportional to 59,145.94, 81,601.86 and 39,012.85

Step by Step Solution

1. Step 1: Write the proportion equation
   59,145.94 : 81,601.86 = 39,012.85 : x
2. Step 2: Convert to fraction form
   59,145.94/81,601.86 = 39,012.85/x
3. Step 3: Cross multiply
   59,145.94x = 81,601.86 × 39,012.85
4. Step 4: Simplify right side
   59,145.94x = 3,183,521,123.90
5. Step 5: Solve for x
   x = 3,183,521,123.90/59,145.94
6. Step 6: Final answer
   x = 53,824.85