Finding the Fourth Proportional to 89,485.34, 123,490.60 and 49,199.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,485.34 : 123,490.60 = 49,199.39 : x
2. Step 2: Convert to fraction form
   89,485.34/123,490.60 = 49,199.39/x
3. Step 3: Cross multiply
   89,485.34x = 123,490.60 × 49,199.39
4. Step 4: Simplify right side
   89,485.34x = 6,075,662,190.73
5. Step 5: Solve for x
   x = 6,075,662,190.73/89,485.34
6. Step 6: Final answer
   x = 67,895.61