Finding the Fourth Proportional to 49,568.98, 68,142.16 and 42,644.85

Step by Step Solution

1. Step 1: Write the proportion equation
   49,568.98 : 68,142.16 = 42,644.85 : x
2. Step 2: Convert to fraction form
   49,568.98/68,142.16 = 42,644.85/x
3. Step 3: Cross multiply
   49,568.98x = 68,142.16 × 42,644.85
4. Step 4: Simplify right side
   49,568.98x = 2,905,911,893.61
5. Step 5: Solve for x
   x = 2,905,911,893.61/49,568.98
6. Step 6: Final answer
   x = 58,623.60