Finding the Fourth Proportional to 75,167.98, 103,706.06 and 42,879.40

Step by Step Solution

1. Step 1: Write the proportion equation
   75,167.98 : 103,706.06 = 42,879.40 : x
2. Step 2: Convert to fraction form
   75,167.98/103,706.06 = 42,879.40/x
3. Step 3: Cross multiply
   75,167.98x = 103,706.06 × 42,879.40
4. Step 4: Simplify right side
   75,167.98x = 4,446,853,155.50
5. Step 5: Solve for x
   x = 4,446,853,155.50/75,167.98
6. Step 6: Final answer
   x = 59,158.88