Finding the Fourth Proportional to 127,647.63, 176,146.83 and 70,275.78

Step by Step Solution

1. Step 1: Write the proportion equation
   127,647.63 : 176,146.83 = 70,275.78 : x
2. Step 2: Convert to fraction form
   127,647.63/176,146.83 = 70,275.78/x
3. Step 3: Cross multiply
   127,647.63x = 176,146.83 × 70,275.78
4. Step 4: Simplify right side
   127,647.63x = 12,378,855,872.78
5. Step 5: Solve for x
   x = 12,378,855,872.78/127,647.63
6. Step 6: Final answer
   x = 96,976.78