Finding the Fourth Proportional to 122,394.72, 168,959.54 and 74,667.09

Step by Step Solution

1. Step 1: Write the proportion equation
   122,394.72 : 168,959.54 = 74,667.09 : x
2. Step 2: Convert to fraction form
   122,394.72/168,959.54 = 74,667.09/x
3. Step 3: Cross multiply
   122,394.72x = 168,959.54 × 74,667.09
4. Step 4: Simplify right side
   122,394.72x = 12,615,717,179.54
5. Step 5: Solve for x
   x = 12,615,717,179.54/122,394.72
6. Step 6: Final answer
   x = 103,074.03