Finding the Fourth Proportional to 80,945.10, 111,699.99 and 45,134.37

Step by Step Solution

1. Step 1: Write the proportion equation
   80,945.10 : 111,699.99 = 45,134.37 : x
2. Step 2: Convert to fraction form
   80,945.10/111,699.99 = 45,134.37/x
3. Step 3: Cross multiply
   80,945.10x = 111,699.99 × 45,134.37
4. Step 4: Simplify right side
   80,945.10x = 5,041,508,677.66
5. Step 5: Solve for x
   x = 5,041,508,677.66/80,945.10
6. Step 6: Final answer
   x = 62,283.06