Finding the Fourth Proportional to 78,082.58, 107,754.81 and 42,273.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,082.58 : 107,754.81 = 42,273.35 : x
2. Step 2: Convert to fraction form
   78,082.58/107,754.81 = 42,273.35/x
3. Step 3: Cross multiply
   78,082.58x = 107,754.81 × 42,273.35
4. Step 4: Simplify right side
   78,082.58x = 4,555,156,797.31
5. Step 5: Solve for x
   x = 4,555,156,797.31/78,082.58
6. Step 6: Final answer
   x = 58,337.68