Finding the Fourth Proportional to 78,591.69, 108,457.67 and 42,782.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,591.69 : 108,457.67 = 42,782.82 : x
2. Step 2: Convert to fraction form
   78,591.69/108,457.67 = 42,782.82/x
3. Step 3: Cross multiply
   78,591.69x = 108,457.67 × 42,782.82
4. Step 4: Simplify right side
   78,591.69x = 4,640,124,759.32
5. Step 5: Solve for x
   x = 4,640,124,759.32/78,591.69
6. Step 6: Final answer
   x = 59,040.91