Finding the Fourth Proportional to 140,667.84, 210,947.20 and 50,686.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,667.84 : 210,947.20 = 50,686.56 : x
2. Step 2: Convert to fraction form
   140,667.84/210,947.20 = 50,686.56/x
3. Step 3: Cross multiply
   140,667.84x = 210,947.20 × 50,686.56
4. Step 4: Simplify right side
   140,667.84x = 10,692,187,909.63
5. Step 5: Solve for x
   x = 10,692,187,909.63/140,667.84
6. Step 6: Final answer
   x = 76,010.18