Finding the Fourth Proportional to 89,485.53, 123,490.10 and 49,199.97

Step by Step Solution

1. Step 1: Write the proportion equation
   89,485.53 : 123,490.10 = 49,199.97 : x
2. Step 2: Convert to fraction form
   89,485.53/123,490.10 = 49,199.97/x
3. Step 3: Cross multiply
   89,485.53x = 123,490.10 × 49,199.97
4. Step 4: Simplify right side
   89,485.53x = 6,075,709,215.30
5. Step 5: Solve for x
   x = 6,075,709,215.30/89,485.53
6. Step 6: Final answer
   x = 67,896.00