Finding the Fourth Proportional to 122,904.72, 169,609.68 and 69,179.31

Step by Step Solution

1. Step 1: Write the proportion equation
   122,904.72 : 169,609.68 = 69,179.31 : x
2. Step 2: Convert to fraction form
   122,904.72/169,609.68 = 69,179.31/x
3. Step 3: Cross multiply
   122,904.72x = 169,609.68 × 69,179.31
4. Step 4: Simplify right side
   122,904.72x = 11,733,480,631.72
5. Step 5: Solve for x
   x = 11,733,480,631.72/122,904.72
6. Step 6: Final answer
   x = 95,468.10