Finding the Fourth Proportional to 127,418.71, 191,141.90 and 42,019.09

Step by Step Solution

1. Step 1: Write the proportion equation
   127,418.71 : 191,141.90 = 42,019.09 : x
2. Step 2: Convert to fraction form
   127,418.71/191,141.90 = 42,019.09/x
3. Step 3: Cross multiply
   127,418.71x = 191,141.90 × 42,019.09
4. Step 4: Simplify right side
   127,418.71x = 8,031,608,326.06
5. Step 5: Solve for x
   x = 8,031,608,326.06/127,418.71
6. Step 6: Final answer
   x = 63,033.20