Finding the Fourth Proportional to 76,619.42, 105,786.89 and 47,950.69

Step by Step Solution

1. Step 1: Write the proportion equation
   76,619.42 : 105,786.89 = 47,950.69 : x
2. Step 2: Convert to fraction form
   76,619.42/105,786.89 = 47,950.69/x
3. Step 3: Cross multiply
   76,619.42x = 105,786.89 × 47,950.69
4. Step 4: Simplify right side
   76,619.42x = 5,072,554,368.45
5. Step 5: Solve for x
   x = 5,072,554,368.45/76,619.42
6. Step 6: Final answer
   x = 66,204.55