Finding the Fourth Proportional to 78,570.59, 108,425.34 and 42,759.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,570.59 : 108,425.34 = 42,759.84 : x
2. Step 2: Convert to fraction form
   78,570.59/108,425.34 = 42,759.84/x
3. Step 3: Cross multiply
   78,570.59x = 108,425.34 × 42,759.84
4. Step 4: Simplify right side
   78,570.59x = 4,636,250,190.35
5. Step 5: Solve for x
   x = 4,636,250,190.35/78,570.59
6. Step 6: Final answer
   x = 59,007.45