Finding the Fourth Proportional to 78,846.32, 118,293.78 and 47,291.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,846.32 : 118,293.78 = 47,291.42 : x
2. Step 2: Convert to fraction form
   78,846.32/118,293.78 = 47,291.42/x
3. Step 3: Cross multiply
   78,846.32x = 118,293.78 × 47,291.42
4. Step 4: Simplify right side
   78,846.32x = 5,594,280,833.37
5. Step 5: Solve for x
   x = 5,594,280,833.37/78,846.32
6. Step 6: Final answer
   x = 70,951.70