Finding the Fourth Proportional to 83,418.45, 115,116.89 and 45,177.12

Step by Step Solution

1. Step 1: Write the proportion equation
   83,418.45 : 115,116.89 = 45,177.12 : x
2. Step 2: Convert to fraction form
   83,418.45/115,116.89 = 45,177.12/x
3. Step 3: Cross multiply
   83,418.45x = 115,116.89 × 45,177.12
4. Step 4: Simplify right side
   83,418.45x = 5,200,649,967.05
5. Step 5: Solve for x
   x = 5,200,649,967.05/83,418.45
6. Step 6: Final answer
   x = 62,344.12