Finding the Fourth Proportional to 76,064.54, 104,968.60 and 42,072.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,064.54 : 104,968.60 = 42,072.42 : x
2. Step 2: Convert to fraction form
   76,064.54/104,968.60 = 42,072.42/x
3. Step 3: Cross multiply
   76,064.54x = 104,968.60 × 42,072.42
4. Step 4: Simplify right side
   76,064.54x = 4,416,282,920.83
5. Step 5: Solve for x
   x = 4,416,282,920.83/76,064.54
6. Step 6: Final answer
   x = 58,059.68