Finding the Fourth Proportional to 76,404.82, 105,435.93 and 42,414.79

Step by Step Solution

1. Step 1: Write the proportion equation
   76,404.82 : 105,435.93 = 42,414.79 : x
2. Step 2: Convert to fraction form
   76,404.82/105,435.93 = 42,414.79/x
3. Step 3: Cross multiply
   76,404.82x = 105,435.93 × 42,414.79
4. Step 4: Simplify right side
   76,404.82x = 4,472,042,829.40
5. Step 5: Solve for x
   x = 4,472,042,829.40/76,404.82
6. Step 6: Final answer
   x = 58,530.90