Finding the Fourth Proportional to 51,680.51, 71,314.73 and 31,270.18

Step by Step Solution

1. Step 1: Write the proportion equation
   51,680.51 : 71,314.73 = 31,270.18 : x
2. Step 2: Convert to fraction form
   51,680.51/71,314.73 = 31,270.18/x
3. Step 3: Cross multiply
   51,680.51x = 71,314.73 × 31,270.18
4. Step 4: Simplify right side
   51,680.51x = 2,230,023,930.83
5. Step 5: Solve for x
   x = 2,230,023,930.83/51,680.51
6. Step 6: Final answer
   x = 43,150.19