Finding the Fourth Proportional to 140,296.42, 210,473.34 and 51,550.84

Step by Step Solution

1. Step 1: Write the proportion equation
   140,296.42 : 210,473.34 = 51,550.84 : x
2. Step 2: Convert to fraction form
   140,296.42/210,473.34 = 51,550.84/x
3. Step 3: Cross multiply
   140,296.42x = 210,473.34 × 51,550.84
4. Step 4: Simplify right side
   140,296.42x = 10,850,077,474.61
5. Step 5: Solve for x
   x = 10,850,077,474.61/140,296.42
6. Step 6: Final answer
   x = 77,336.81