Finding the Fourth Proportional to 123,051.69, 169,830.32 and 74,661.57

Step by Step Solution

1. Step 1: Write the proportion equation
   123,051.69 : 169,830.32 = 74,661.57 : x
2. Step 2: Convert to fraction form
   123,051.69/169,830.32 = 74,661.57/x
3. Step 3: Cross multiply
   123,051.69x = 169,830.32 × 74,661.57
4. Step 4: Simplify right side
   123,051.69x = 12,679,797,951.49
5. Step 5: Solve for x
   x = 12,679,797,951.49/123,051.69
6. Step 6: Final answer
   x = 103,044.48