Finding the Fourth Proportional to 89,485.62, 123,487 and 49,199.07

Step by Step Solution

1. Step 1: Write the proportion equation
   89,485.62 : 123,487 = 49,199.07 : x
2. Step 2: Convert to fraction form
   89,485.62/123,487 = 49,199.07/x
3. Step 3: Cross multiply
   89,485.62x = 123,487 × 49,199.07
4. Step 4: Simplify right side
   89,485.62x = 6,075,445,557.09
5. Step 5: Solve for x
   x = 6,075,445,557.09/89,485.62
6. Step 6: Final answer
   x = 67,892.98