Finding the Fourth Proportional to 78,075.82, 107,744.61 and 42,265.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,075.82 : 107,744.61 = 42,265.80 : x
2. Step 2: Convert to fraction form
   78,075.82/107,744.61 = 42,265.80/x
3. Step 3: Cross multiply
   78,075.82x = 107,744.61 × 42,265.80
4. Step 4: Simplify right side
   78,075.82x = 4,553,912,137.34
5. Step 5: Solve for x
   x = 4,553,912,137.34/78,075.82
6. Step 6: Final answer
   x = 58,326.79