Finding the Fourth Proportional to 78,568.59, 108,422.58 and 42,757.84

Step by Step Solution

1. Step 1: Write the proportion equation
   78,568.59 : 108,422.58 = 42,757.84 : x
2. Step 2: Convert to fraction form
   78,568.59/108,422.58 = 42,757.84/x
3. Step 3: Cross multiply
   78,568.59x = 108,422.58 × 42,757.84
4. Step 4: Simplify right side
   78,568.59x = 4,635,915,056.97
5. Step 5: Solve for x
   x = 4,635,915,056.97/78,568.59
6. Step 6: Final answer
   x = 59,004.68