Finding the Fourth Proportional to 78,046.33, 107,704.20 and 42,236.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,046.33 : 107,704.20 = 42,236.33 : x
2. Step 2: Convert to fraction form
   78,046.33/107,704.20 = 42,236.33/x
3. Step 3: Cross multiply
   78,046.33x = 107,704.20 × 42,236.33
4. Step 4: Simplify right side
   78,046.33x = 4,549,030,133.59
5. Step 5: Solve for x
   x = 4,549,030,133.59/78,046.33
6. Step 6: Final answer
   x = 58,286.28