Finding the Fourth Proportional to 127,022.71, 190,478.70 and 42,760.25

Step by Step Solution

1. Step 1: Write the proportion equation
   127,022.71 : 190,478.70 = 42,760.25 : x
2. Step 2: Convert to fraction form
   127,022.71/190,478.70 = 42,760.25/x
3. Step 3: Cross multiply
   127,022.71x = 190,478.70 × 42,760.25
4. Step 4: Simplify right side
   127,022.71x = 8,144,917,725.15
5. Step 5: Solve for x
   x = 8,144,917,725.15/127,022.71
6. Step 6: Final answer
   x = 64,121.75