Finding the Fourth Proportional to 76,394.25, 105,424.20 and 42,401.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76,394.25 : 105,424.20 = 42,401.52 : x
2. Step 2: Convert to fraction form
   76,394.25/105,424.20 = 42,401.52/x
3. Step 3: Cross multiply
   76,394.25x = 105,424.20 × 42,401.52
4. Step 4: Simplify right side
   76,394.25x = 4,470,146,324.78
5. Step 5: Solve for x
   x = 4,470,146,324.78/76,394.25
6. Step 6: Final answer
   x = 58,514.17