Finding the Fourth Proportional to 281,383.16, 388,308.72 and 154,058.72

Step by Step Solution

1. Step 1: Write the proportion equation
   281,383.16 : 388,308.72 = 154,058.72 : x
2. Step 2: Convert to fraction form
   281,383.16/388,308.72 = 154,058.72/x
3. Step 3: Cross multiply
   281,383.16x = 388,308.72 × 154,058.72
4. Step 4: Simplify right side
   281,383.16x = 59,822,344,368.04
5. Step 5: Solve for x
   x = 59,822,344,368.04/281,383.16
6. Step 6: Final answer
   x = 212,601.01