Finding the Fourth Proportional to 76,395.83, 105,424.61 and 42,402.33

Step by Step Solution

1. Step 1: Write the proportion equation
   76,395.83 : 105,424.61 = 42,402.33 : x
2. Step 2: Convert to fraction form
   76,395.83/105,424.61 = 42,402.33/x
3. Step 3: Cross multiply
   76,395.83x = 105,424.61 × 42,402.33
4. Step 4: Simplify right side
   76,395.83x = 4,470,248,891.33
5. Step 5: Solve for x
   x = 4,470,248,891.33/76,395.83
6. Step 6: Final answer
   x = 58,514.31