Finding the Fourth Proportional to 78,077.32, 107,747.05 and 42,267.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,077.32 : 107,747.05 = 42,267.33 : x
2. Step 2: Convert to fraction form
   78,077.32/107,747.05 = 42,267.33/x
3. Step 3: Cross multiply
   78,077.32x = 107,747.05 × 42,267.33
4. Step 4: Simplify right side
   78,077.32x = 4,554,180,118.88
5. Step 5: Solve for x
   x = 4,554,180,118.88/78,077.32
6. Step 6: Final answer
   x = 58,329.10