Finding the Fourth Proportional to 65,910.91, 99,147 and 59,745.37

Step by Step Solution

1. Step 1: Write the proportion equation
   65,910.91 : 99,147 = 59,745.37 : x
2. Step 2: Convert to fraction form
   65,910.91/99,147 = 59,745.37/x
3. Step 3: Cross multiply
   65,910.91x = 99,147 × 59,745.37
4. Step 4: Simplify right side
   65,910.91x = 5,923,574,199.39
5. Step 5: Solve for x
   x = 5,923,574,199.39/65,910.91
6. Step 6: Final answer
   x = 89,872.45