Finding the Fourth Proportional to 76,456.75, 105,510.32 and 42,922.75

Step by Step Solution

1. Step 1: Write the proportion equation
   76,456.75 : 105,510.32 = 42,922.75 : x
2. Step 2: Convert to fraction form
   76,456.75/105,510.32 = 42,922.75/x
3. Step 3: Cross multiply
   76,456.75x = 105,510.32 × 42,922.75
4. Step 4: Simplify right side
   76,456.75x = 4,528,793,087.78
5. Step 5: Solve for x
   x = 4,528,793,087.78/76,456.75
6. Step 6: Final answer
   x = 59,233.40