Finding the Fourth Proportional to 140,524.38, 210,869.55 and 51,839.82

Step by Step Solution

1. Step 1: Write the proportion equation
   140,524.38 : 210,869.55 = 51,839.82 : x
2. Step 2: Convert to fraction form
   140,524.38/210,869.55 = 51,839.82/x
3. Step 3: Cross multiply
   140,524.38x = 210,869.55 × 51,839.82
4. Step 4: Simplify right side
   140,524.38x = 10,931,439,515.48
5. Step 5: Solve for x
   x = 10,931,439,515.48/140,524.38
6. Step 6: Final answer
   x = 77,790.34