Finding the Fourth Proportional to 76,604.57, 105,685.29 and 47,519.49

Step by Step Solution

1. Step 1: Write the proportion equation
   76,604.57 : 105,685.29 = 47,519.49 : x
2. Step 2: Convert to fraction form
   76,604.57/105,685.29 = 47,519.49/x
3. Step 3: Cross multiply
   76,604.57x = 105,685.29 × 47,519.49
4. Step 4: Simplify right side
   76,604.57x = 5,022,111,477.62
5. Step 5: Solve for x
   x = 5,022,111,477.62/76,604.57
6. Step 6: Final answer
   x = 65,558.90