Finding the Fourth Proportional to 48,898.52, 67,220.28 and 42,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   48,898.52 : 67,220.28 = 42,067.50 : x
2. Step 2: Convert to fraction form
   48,898.52/67,220.28 = 42,067.50/x
3. Step 3: Cross multiply
   48,898.52x = 67,220.28 × 42,067.50
4. Step 4: Simplify right side
   48,898.52x = 2,827,789,128.90
5. Step 5: Solve for x
   x = 2,827,789,128.90/48,898.52
6. Step 6: Final answer
   x = 57,829.75