Finding the Fourth Proportional to 140,434.83, 210,608.42 and 46,918.71

Step by Step Solution

1. Step 1: Write the proportion equation
   140,434.83 : 210,608.42 = 46,918.71 : x
2. Step 2: Convert to fraction form
   140,434.83/210,608.42 = 46,918.71/x
3. Step 3: Cross multiply
   140,434.83x = 210,608.42 × 46,918.71
4. Step 4: Simplify right side
   140,434.83x = 9,881,475,146.94
5. Step 5: Solve for x
   x = 9,881,475,146.94/140,434.83
6. Step 6: Final answer
   x = 70,363.42