Finding the Fourth Proportional to 89,978.83, 124,170.35 and 49,692.41

Step by Step Solution

1. Step 1: Write the proportion equation
   89,978.83 : 124,170.35 = 49,692.41 : x
2. Step 2: Convert to fraction form
   89,978.83/124,170.35 = 49,692.41/x
3. Step 3: Cross multiply
   89,978.83x = 124,170.35 × 49,692.41
4. Step 4: Simplify right side
   89,978.83x = 6,170,323,942.04
5. Step 5: Solve for x
   x = 6,170,323,942.04/89,978.83
6. Step 6: Final answer
   x = 68,575.29