Finding the Fourth Proportional to 445,825, 668,776.38 and 113,401

Step by Step Solution

1. Step 1: Write the proportion equation
   445,825 : 668,776.38 = 113,401 : x
2. Step 2: Convert to fraction form
   445,825/668,776.38 = 113,401/x
3. Step 3: Cross multiply
   445,825x = 668,776.38 × 113,401
4. Step 4: Simplify right side
   445,825x = 75,839,910,268.38
5. Step 5: Solve for x
   x = 75,839,910,268.38/445,825
6. Step 6: Final answer
   x = 170,111.39