Finding the Fourth Proportional to 89,479.63, 123,478.74 and 49,193.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,479.63 : 123,478.74 = 49,193.10 : x
2. Step 2: Convert to fraction form
   89,479.63/123,478.74 = 49,193.10/x
3. Step 3: Cross multiply
   89,479.63x = 123,478.74 × 49,193.10
4. Step 4: Simplify right side
   89,479.63x = 6,074,301,141.33
5. Step 5: Solve for x
   x = 6,074,301,141.33/89,479.63
6. Step 6: Final answer
   x = 67,884.74