Finding the Fourth Proportional to 127,288.72, 175,662.84 and 70,705.36

Step by Step Solution

1. Step 1: Write the proportion equation
   127,288.72 : 175,662.84 = 70,705.36 : x
2. Step 2: Convert to fraction form
   127,288.72/175,662.84 = 70,705.36/x
3. Step 3: Cross multiply
   127,288.72x = 175,662.84 × 70,705.36
4. Step 4: Simplify right side
   127,288.72x = 12,420,304,340.82
5. Step 5: Solve for x
   x = 12,420,304,340.82/127,288.72
6. Step 6: Final answer
   x = 97,575.84