Finding the Fourth Proportional to 140,314.48, 210,554.76 and 51,630.26

Step by Step Solution

1. Step 1: Write the proportion equation
   140,314.48 : 210,554.76 = 51,630.26 : x
2. Step 2: Convert to fraction form
   140,314.48/210,554.76 = 51,630.26/x
3. Step 3: Cross multiply
   140,314.48x = 210,554.76 × 51,630.26
4. Step 4: Simplify right side
   140,314.48x = 10,870,996,744.89
5. Step 5: Solve for x
   x = 10,870,996,744.89/140,314.48
6. Step 6: Final answer
   x = 77,475.94