Finding the Fourth Proportional to 140,314.46, 210,554.72 and 51,630.24

Step by Step Solution

1. Step 1: Write the proportion equation
   140,314.46 : 210,554.72 = 51,630.24 : x
2. Step 2: Convert to fraction form
   140,314.46/210,554.72 = 51,630.24/x
3. Step 3: Cross multiply
   140,314.46x = 210,554.72 × 51,630.24
4. Step 4: Simplify right side
   140,314.46x = 10,870,990,726.73
5. Step 5: Solve for x
   x = 10,870,990,726.73/140,314.46
6. Step 6: Final answer
   x = 77,475.91