Finding the Fourth Proportional to 76,320.48, 105,323.03 and 42,329.49

Step by Step Solution

1. Step 1: Write the proportion equation
   76,320.48 : 105,323.03 = 42,329.49 : x
2. Step 2: Convert to fraction form
   76,320.48/105,323.03 = 42,329.49/x
3. Step 3: Cross multiply
   76,320.48x = 105,323.03 × 42,329.49
4. Step 4: Simplify right side
   76,320.48x = 4,458,269,935.38
5. Step 5: Solve for x
   x = 4,458,269,935.38/76,320.48
6. Step 6: Final answer
   x = 58,415.12