Finding the Fourth Proportional to 75,168, 103,706.06 and 42,879.42

Step by Step Solution

1. Step 1: Write the proportion equation
   75,168 : 103,706.06 = 42,879.42 : x
2. Step 2: Convert to fraction form
   75,168/103,706.06 = 42,879.42/x
3. Step 3: Cross multiply
   75,168x = 103,706.06 × 42,879.42
4. Step 4: Simplify right side
   75,168x = 4,446,855,488.89
5. Step 5: Solve for x
   x = 4,446,855,488.89/75,168
6. Step 6: Final answer
   x = 59,158.89