Finding the Fourth Proportional to 140,726.52, 211,143.89 and 84,605.37

Step by Step Solution

1. Step 1: Write the proportion equation
   140,726.52 : 211,143.89 = 84,605.37 : x
2. Step 2: Convert to fraction form
   140,726.52/211,143.89 = 84,605.37/x
3. Step 3: Cross multiply
   140,726.52x = 211,143.89 × 84,605.37
4. Step 4: Simplify right side
   140,726.52x = 17,863,906,513.66
5. Step 5: Solve for x
   x = 17,863,906,513.66/140,726.52
6. Step 6: Final answer
   x = 126,940.58