Finding the Fourth Proportional to 76,151.38, 105,074.32 and 49,290.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,151.38 : 105,074.32 = 49,290.16 : x
2. Step 2: Convert to fraction form
   76,151.38/105,074.32 = 49,290.16/x
3. Step 3: Cross multiply
   76,151.38x = 105,074.32 × 49,290.16
4. Step 4: Simplify right side
   76,151.38x = 5,179,130,044.69
5. Step 5: Solve for x
   x = 5,179,130,044.69/76,151.38
6. Step 6: Final answer
   x = 68,010.98