Finding the Fourth Proportional to 140,473.86, 210,612.30 and 51,715.82

Step by Step Solution

1. Step 1: Write the proportion equation
   140,473.86 : 210,612.30 = 51,715.82 : x
2. Step 2: Convert to fraction form
   140,473.86/210,612.30 = 51,715.82/x
3. Step 3: Cross multiply
   140,473.86x = 210,612.30 × 51,715.82
4. Step 4: Simplify right side
   140,473.86x = 10,891,987,796.59
5. Step 5: Solve for x
   x = 10,891,987,796.59/140,473.86
6. Step 6: Final answer
   x = 77,537.47