Finding the Fourth Proportional to 404,478.34, 606,726.88 and 104,970.72

Step by Step Solution

1. Step 1: Write the proportion equation
   404,478.34 : 606,726.88 = 104,970.72 : x
2. Step 2: Convert to fraction form
   404,478.34/606,726.88 = 104,970.72/x
3. Step 3: Cross multiply
   404,478.34x = 606,726.88 × 104,970.72
4. Step 4: Simplify right side
   404,478.34x = 63,688,557,436.95
5. Step 5: Solve for x
   x = 63,688,557,436.95/404,478.34
6. Step 6: Final answer
   x = 157,458.51