Finding the Fourth Proportional to 140,282.23, 210,429.59 and 51,487.29

Step by Step Solution

1. Step 1: Write the proportion equation
   140,282.23 : 210,429.59 = 51,487.29 : x
2. Step 2: Convert to fraction form
   140,282.23/210,429.59 = 51,487.29/x
3. Step 3: Cross multiply
   140,282.23x = 210,429.59 × 51,487.29
4. Step 4: Simplify right side
   140,282.23x = 10,834,449,067.47
5. Step 5: Solve for x
   x = 10,834,449,067.47/140,282.23
6. Step 6: Final answer
   x = 77,233.23