Finding the Fourth Proportional to 89,410.50, 123,388.71 and 49,126.87

Step by Step Solution

1. Step 1: Write the proportion equation
   89,410.50 : 123,388.71 = 49,126.87 : x
2. Step 2: Convert to fraction form
   89,410.50/123,388.71 = 49,126.87/x
3. Step 3: Cross multiply
   89,410.50x = 123,388.71 × 49,126.87
4. Step 4: Simplify right side
   89,410.50x = 6,061,701,115.64
5. Step 5: Solve for x
   x = 6,061,701,115.64/89,410.50
6. Step 6: Final answer
   x = 67,796.30