Finding the Fourth Proportional to 71,546.98, 98,745.10 and 42,867.78

Step by Step Solution

1. Step 1: Write the proportion equation
   71,546.98 : 98,745.10 = 42,867.78 : x
2. Step 2: Convert to fraction form
   71,546.98/98,745.10 = 42,867.78/x
3. Step 3: Cross multiply
   71,546.98x = 98,745.10 × 42,867.78
4. Step 4: Simplify right side
   71,546.98x = 4,232,983,222.88
5. Step 5: Solve for x
   x = 4,232,983,222.88/71,546.98
6. Step 6: Final answer
   x = 59,163.69