Finding the Fourth Proportional to 76,456.46, 105,506.25 and 42,467.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,456.46 : 105,506.25 = 42,467.10 : x
2. Step 2: Convert to fraction form
   76,456.46/105,506.25 = 42,467.10/x
3. Step 3: Cross multiply
   76,456.46x = 105,506.25 × 42,467.10
4. Step 4: Simplify right side
   76,456.46x = 4,480,544,469.38
5. Step 5: Solve for x
   x = 4,480,544,469.38/76,456.46
6. Step 6: Final answer
   x = 58,602.56