Finding the Fourth Proportional to 76,297.14, 105,290.82 and 42,306.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,297.14 : 105,290.82 = 42,306.30 : x
2. Step 2: Convert to fraction form
   76,297.14/105,290.82 = 42,306.30/x
3. Step 3: Cross multiply
   76,297.14x = 105,290.82 × 42,306.30
4. Step 4: Simplify right side
   76,297.14x = 4,454,465,018.17
5. Step 5: Solve for x
   x = 4,454,465,018.17/76,297.14
6. Step 6: Final answer
   x = 58,383.12