Finding the Fourth Proportional to 89,479.62, 123,479.28 and 49,193.46

Step by Step Solution

1. Step 1: Write the proportion equation
   89,479.62 : 123,479.28 = 49,193.46 : x
2. Step 2: Convert to fraction form
   89,479.62/123,479.28 = 49,193.46/x
3. Step 3: Cross multiply
   89,479.62x = 123,479.28 × 49,193.46
4. Step 4: Simplify right side
   89,479.62x = 6,074,373,021.51
5. Step 5: Solve for x
   x = 6,074,373,021.51/89,479.62
6. Step 6: Final answer
   x = 67,885.55