Finding the Fourth Proportional to 89,486.37, 123,492.02 and 49,200.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,486.37 : 123,492.02 = 49,200.39 : x
2. Step 2: Convert to fraction form
   89,486.37/123,492.02 = 49,200.39/x
3. Step 3: Cross multiply
   89,486.37x = 123,492.02 × 49,200.39
4. Step 4: Simplify right side
   89,486.37x = 6,075,855,299.89
5. Step 5: Solve for x
   x = 6,075,855,299.89/89,486.37
6. Step 6: Final answer
   x = 67,896.99