Finding the Fourth Proportional to 122,109.89, 168,425.06 and 76,192.66

Step by Step Solution

1. Step 1: Write the proportion equation
   122,109.89 : 168,425.06 = 76,192.66 : x
2. Step 2: Convert to fraction form
   122,109.89/168,425.06 = 76,192.66/x
3. Step 3: Cross multiply
   122,109.89x = 168,425.06 × 76,192.66
4. Step 4: Simplify right side
   122,109.89x = 12,832,752,530.03
5. Step 5: Solve for x
   x = 12,832,752,530.03/122,109.89
6. Step 6: Final answer
   x = 105,091.83