Finding the Fourth Proportional to 75,825.72, 104,641.74 and 42,291

Step by Step Solution

1. Step 1: Write the proportion equation
   75,825.72 : 104,641.74 = 42,291 : x
2. Step 2: Convert to fraction form
   75,825.72/104,641.74 = 42,291/x
3. Step 3: Cross multiply
   75,825.72x = 104,641.74 × 42,291
4. Step 4: Simplify right side
   75,825.72x = 4,425,403,826.34
5. Step 5: Solve for x
   x = 4,425,403,826.34/75,825.72
6. Step 6: Final answer
   x = 58,362.83