Finding the Fourth Proportional to 65,049.35, 89,783.08 and 42,348.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,049.35 : 89,783.08 = 42,348.80 : x
2. Step 2: Convert to fraction form
   65,049.35/89,783.08 = 42,348.80/x
3. Step 3: Cross multiply
   65,049.35x = 89,783.08 × 42,348.80
4. Step 4: Simplify right side
   65,049.35x = 3,802,205,816.89
5. Step 5: Solve for x
   x = 3,802,205,816.89/65,049.35
6. Step 6: Final answer
   x = 58,451.10