Finding the Fourth Proportional to 72,122.38, 107,994.56 and 47,092.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,122.38 : 107,994.56 = 47,092.18 : x
2. Step 2: Convert to fraction form
   72,122.38/107,994.56 = 47,092.18/x
3. Step 3: Cross multiply
   72,122.38x = 107,994.56 × 47,092.18
4. Step 4: Simplify right side
   72,122.38x = 5,085,699,258.54
5. Step 5: Solve for x
   x = 5,085,699,258.54/72,122.38
6. Step 6: Final answer
   x = 70,514.86