Finding the Fourth Proportional to 81,945.50, 113,082.93 and 45,646.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,945.50 : 113,082.93 = 45,646.70 : x
2. Step 2: Convert to fraction form
   81,945.50/113,082.93 = 45,646.70/x
3. Step 3: Cross multiply
   81,945.50x = 113,082.93 × 45,646.70
4. Step 4: Simplify right side
   81,945.50x = 5,161,862,580.83
5. Step 5: Solve for x
   x = 5,161,862,580.83/81,945.50
6. Step 6: Final answer
   x = 62,991.41