Finding the Fourth Proportional to 123,146.84, 169,939.24 and 69,431.39

Step by Step Solution

1. Step 1: Write the proportion equation
   123,146.84 : 169,939.24 = 69,431.39 : x
2. Step 2: Convert to fraction form
   123,146.84/169,939.24 = 69,431.39/x
3. Step 3: Cross multiply
   123,146.84x = 169,939.24 × 69,431.39
4. Step 4: Simplify right side
   123,146.84x = 11,799,117,648.74
5. Step 5: Solve for x
   x = 11,799,117,648.74/123,146.84
6. Step 6: Final answer
   x = 95,813.40