Finding the Fourth Proportional to 76,456.88, 105,510.49 and 42,922.88

Step by Step Solution

1. Step 1: Write the proportion equation
   76,456.88 : 105,510.49 = 42,922.88 : x
2. Step 2: Convert to fraction form
   76,456.88/105,510.49 = 42,922.88/x
3. Step 3: Cross multiply
   76,456.88x = 105,510.49 × 42,922.88
4. Step 4: Simplify right side
   76,456.88x = 4,528,813,466.15
5. Step 5: Solve for x
   x = 4,528,813,466.15/76,456.88
6. Step 6: Final answer
   x = 59,233.57