Finding the Fourth Proportional to 51,154.39, 70,596.61 and 31,012.12

Step by Step Solution

1. Step 1: Write the proportion equation
   51,154.39 : 70,596.61 = 31,012.12 : x
2. Step 2: Convert to fraction form
   51,154.39/70,596.61 = 31,012.12/x
3. Step 3: Cross multiply
   51,154.39x = 70,596.61 × 31,012.12
4. Step 4: Simplify right side
   51,154.39x = 2,189,350,286.89
5. Step 5: Solve for x
   x = 2,189,350,286.89/51,154.39
6. Step 6: Final answer
   x = 42,798.88