Finding the Fourth Proportional to 80,970.17, 111,739.37 and 45,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,970.17 : 111,739.37 = 45,162.50 : x
2. Step 2: Convert to fraction form
   80,970.17/111,739.37 = 45,162.50/x
3. Step 3: Cross multiply
   80,970.17x = 111,739.37 × 45,162.50
4. Step 4: Simplify right side
   80,970.17x = 5,046,428,513.12
5. Step 5: Solve for x
   x = 5,046,428,513.12/80,970.17
6. Step 6: Final answer
   x = 62,324.54