Finding the Fourth Proportional to 48,891.96, 67,211.52 and 42,061.05

Step by Step Solution

1. Step 1: Write the proportion equation
   48,891.96 : 67,211.52 = 42,061.05 : x
2. Step 2: Convert to fraction form
   48,891.96/67,211.52 = 42,061.05/x
3. Step 3: Cross multiply
   48,891.96x = 67,211.52 × 42,061.05
4. Step 4: Simplify right side
   48,891.96x = 2,826,987,103.30
5. Step 5: Solve for x
   x = 2,826,987,103.30/48,891.96
6. Step 6: Final answer
   x = 57,821.10