Finding the Fourth Proportional to 81,206.52, 112,066.56 and 45,399.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,206.52 : 112,066.56 = 45,399.12 : x
2. Step 2: Convert to fraction form
   81,206.52/112,066.56 = 45,399.12/x
3. Step 3: Cross multiply
   81,206.52x = 112,066.56 × 45,399.12
4. Step 4: Simplify right side
   81,206.52x = 5,087,723,205.43
5. Step 5: Solve for x
   x = 5,087,723,205.43/81,206.52
6. Step 6: Final answer
   x = 62,651.66