Finding the Fourth Proportional to 122,513.56, 169,115.52 and 119,142.88

Step by Step Solution

1. Step 1: Write the proportion equation
   122,513.56 : 169,115.52 = 119,142.88 : x
2. Step 2: Convert to fraction form
   122,513.56/169,115.52 = 119,142.88/x
3. Step 3: Cross multiply
   122,513.56x = 169,115.52 × 119,142.88
4. Step 4: Simplify right side
   122,513.56x = 20,148,910,105.50
5. Step 5: Solve for x
   x = 20,148,910,105.50/122,513.56
6. Step 6: Final answer
   x = 164,462.69