Finding the Fourth Proportional to 75,753.82, 104,540.79 and 42,221.98

Step by Step Solution

1. Step 1: Write the proportion equation
   75,753.82 : 104,540.79 = 42,221.98 : x
2. Step 2: Convert to fraction form
   75,753.82/104,540.79 = 42,221.98/x
3. Step 3: Cross multiply
   75,753.82x = 104,540.79 × 42,221.98
4. Step 4: Simplify right side
   75,753.82x = 4,413,919,144.56
5. Step 5: Solve for x
   x = 4,413,919,144.56/75,753.82
6. Step 6: Final answer
   x = 58,266.62