Finding the Fourth Proportional to 51,323.68, 70,833.72 and 30,109.78

Step by Step Solution

1. Step 1: Write the proportion equation
   51,323.68 : 70,833.72 = 30,109.78 : x
2. Step 2: Convert to fraction form
   51,323.68/70,833.72 = 30,109.78/x
3. Step 3: Cross multiply
   51,323.68x = 70,833.72 × 30,109.78
4. Step 4: Simplify right side
   51,323.68x = 2,132,787,725.78
5. Step 5: Solve for x
   x = 2,132,787,725.78/51,323.68
6. Step 6: Final answer
   x = 41,555.63