Finding the Fourth Proportional to 51,411.94, 70,947.15 and 28,442.61

Step by Step Solution

1. Step 1: Write the proportion equation
   51,411.94 : 70,947.15 = 28,442.61 : x
2. Step 2: Convert to fraction form
   51,411.94/70,947.15 = 28,442.61/x
3. Step 3: Cross multiply
   51,411.94x = 70,947.15 × 28,442.61
4. Step 4: Simplify right side
   51,411.94x = 2,017,922,118.06
5. Step 5: Solve for x
   x = 2,017,922,118.06/51,411.94
6. Step 6: Final answer
   x = 39,250.07