Finding the Fourth Proportional to 89,485.54, 123,490.10 and 49,199.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89,485.54 : 123,490.10 = 49,199.98 : x
2. Step 2: Convert to fraction form
   89,485.54/123,490.10 = 49,199.98/x
3. Step 3: Cross multiply
   89,485.54x = 123,490.10 × 49,199.98
4. Step 4: Simplify right side
   89,485.54x = 6,075,710,450.20
5. Step 5: Solve for x
   x = 6,075,710,450.20/89,485.54
6. Step 6: Final answer
   x = 67,896.00