Finding the Fourth Proportional to 78,085.44, 107,757.16 and 42,274.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,085.44 : 107,757.16 = 42,274.52 : x
2. Step 2: Convert to fraction form
   78,085.44/107,757.16 = 42,274.52/x
3. Step 3: Cross multiply
   78,085.44x = 107,757.16 × 42,274.52
4. Step 4: Simplify right side
   78,085.44x = 4,555,382,215.56
5. Step 5: Solve for x
   x = 4,555,382,215.56/78,085.44
6. Step 6: Final answer
   x = 58,338.43