Finding the Fourth Proportional to 65,108.99, 89,799.74 and 43,591.90

Step by Step Solution

1. Step 1: Write the proportion equation
   65,108.99 : 89,799.74 = 43,591.90 : x
2. Step 2: Convert to fraction form
   65,108.99/89,799.74 = 43,591.90/x
3. Step 3: Cross multiply
   65,108.99x = 89,799.74 × 43,591.90
4. Step 4: Simplify right side
   65,108.99x = 3,914,540,922.93
5. Step 5: Solve for x
   x = 3,914,540,922.93/65,108.99
6. Step 6: Final answer
   x = 60,122.89