Finding the Fourth Proportional to 78,947, 108,995.46 and 50,702.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,947 : 108,995.46 = 50,702.48 : x
2. Step 2: Convert to fraction form
   78,947/108,995.46 = 50,702.48/x
3. Step 3: Cross multiply
   78,947x = 108,995.46 × 50,702.48
4. Step 4: Simplify right side
   78,947x = 5,526,340,130.74
5. Step 5: Solve for x
   x = 5,526,340,130.74/78,947
6. Step 6: Final answer
   x = 70,000.63