Finding the Fourth Proportional to 271,315.32, 407,093.94 and 105,116.28

Step by Step Solution

1. Step 1: Write the proportion equation
   271,315.32 : 407,093.94 = 105,116.28 : x
2. Step 2: Convert to fraction form
   271,315.32/407,093.94 = 105,116.28/x
3. Step 3: Cross multiply
   271,315.32x = 407,093.94 × 105,116.28
4. Step 4: Simplify right side
   271,315.32x = 42,792,200,583.34
5. Step 5: Solve for x
   x = 42,792,200,583.34/271,315.32
6. Step 6: Final answer
   x = 157,721.28