Finding the Fourth Proportional to 140,314.98, 210,555.51 and 51,630.76

Step by Step Solution

1. Step 1: Write the proportion equation
   140,314.98 : 210,555.51 = 51,630.76 : x
2. Step 2: Convert to fraction form
   140,314.98/210,555.51 = 51,630.76/x
3. Step 3: Cross multiply
   140,314.98x = 210,555.51 × 51,630.76
4. Step 4: Simplify right side
   140,314.98x = 10,871,140,745.33
5. Step 5: Solve for x
   x = 10,871,140,745.33/140,314.98
6. Step 6: Final answer
   x = 77,476.69