Finding the Fourth Proportional to 76,149.38, 105,071.56 and 49,288.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,149.38 : 105,071.56 = 49,288.16 : x
2. Step 2: Convert to fraction form
   76,149.38/105,071.56 = 49,288.16/x
3. Step 3: Cross multiply
   76,149.38x = 105,071.56 × 49,288.16
4. Step 4: Simplify right side
   76,149.38x = 5,178,783,212.15
5. Step 5: Solve for x
   x = 5,178,783,212.15/76,149.38
6. Step 6: Final answer
   x = 68,008.22