Finding the Fourth Proportional to 123,009.16, 169,751.89 and 69,311.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,009.16 : 169,751.89 = 69,311.47 : x
2. Step 2: Convert to fraction form
   123,009.16/169,751.89 = 69,311.47/x
3. Step 3: Cross multiply
   123,009.16x = 169,751.89 × 69,311.47
4. Step 4: Simplify right side
   123,009.16x = 11,765,753,031.18
5. Step 5: Solve for x
   x = 11,765,753,031.18/123,009.16
6. Step 6: Final answer
   x = 95,649.41