Finding the Fourth Proportional to 65,048.58, 89,782.05 and 42,348.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,048.58 : 89,782.05 = 42,348.05 : x
2. Step 2: Convert to fraction form
   65,048.58/89,782.05 = 42,348.05/x
3. Step 3: Cross multiply
   65,048.58x = 89,782.05 × 42,348.05
4. Step 4: Simplify right side
   65,048.58x = 3,802,094,293.59
5. Step 5: Solve for x
   x = 3,802,094,293.59/65,048.58
6. Step 6: Final answer
   x = 58,450.07