Finding the Fourth Proportional to 83,689.89, 115,494.03 and 45,450.87

Step by Step Solution

1. Step 1: Write the proportion equation
   83,689.89 : 115,494.03 = 45,450.87 : x
2. Step 2: Convert to fraction form
   83,689.89/115,494.03 = 45,450.87/x
3. Step 3: Cross multiply
   83,689.89x = 115,494.03 × 45,450.87
4. Step 4: Simplify right side
   83,689.89x = 5,249,304,143.31
5. Step 5: Solve for x
   x = 5,249,304,143.31/83,689.89
6. Step 6: Final answer
   x = 62,723.28