Finding the Fourth Proportional to 89,706.75, 123,801 and 49,420.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,706.75 : 123,801 = 49,420.59 : x
2. Step 2: Convert to fraction form
   89,706.75/123,801 = 49,420.59/x
3. Step 3: Cross multiply
   89,706.75x = 123,801 × 49,420.59
4. Step 4: Simplify right side
   89,706.75x = 6,118,318,462.59
5. Step 5: Solve for x
   x = 6,118,318,462.59/89,706.75
6. Step 6: Final answer
   x = 68,203.55