Finding the Fourth Proportional to 140,144.93, 210,092.37 and 51,377.71

Step by Step Solution

1. Step 1: Write the proportion equation
   140,144.93 : 210,092.37 = 51,377.71 : x
2. Step 2: Convert to fraction form
   140,144.93/210,092.37 = 51,377.71/x
3. Step 3: Cross multiply
   140,144.93x = 210,092.37 × 51,377.71
4. Step 4: Simplify right side
   140,144.93x = 10,794,064,859.07
5. Step 5: Solve for x
   x = 10,794,064,859.07/140,144.93
6. Step 6: Final answer
   x = 77,020.73