Finding the Fourth Proportional to 76,028.69, 114,146.46 and 42,772.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,028.69 : 114,146.46 = 42,772.16 : x
2. Step 2: Convert to fraction form
   76,028.69/114,146.46 = 42,772.16/x
3. Step 3: Cross multiply
   76,028.69x = 114,146.46 × 42,772.16
4. Step 4: Simplify right side
   76,028.69x = 4,882,290,935.92
5. Step 5: Solve for x
   x = 4,882,290,935.92/76,028.69
6. Step 6: Final answer
   x = 64,216.43