Finding the Fourth Proportional to 122,728.30, 184,119.89 and 42,769.96

Step by Step Solution

1. Step 1: Write the proportion equation
   122,728.30 : 184,119.89 = 42,769.96 : x
2. Step 2: Convert to fraction form
   122,728.30/184,119.89 = 42,769.96/x
3. Step 3: Cross multiply
   122,728.30x = 184,119.89 × 42,769.96
4. Step 4: Simplify right side
   122,728.30x = 7,874,799,656.35
5. Step 5: Solve for x
   x = 7,874,799,656.35/122,728.30
6. Step 6: Final answer
   x = 64,164.50