Finding the Fourth Proportional to 404,479.34, 606,728.38 and 104,971.72

Step by Step Solution

1. Step 1: Write the proportion equation
   404,479.34 : 606,728.38 = 104,971.72 : x
2. Step 2: Convert to fraction form
   404,479.34/606,728.38 = 104,971.72/x
3. Step 3: Cross multiply
   404,479.34x = 606,728.38 × 104,971.72
4. Step 4: Simplify right side
   404,479.34x = 63,689,321,621.41
5. Step 5: Solve for x
   x = 63,689,321,621.41/404,479.34
6. Step 6: Final answer
   x = 157,460.01