Finding the Fourth Proportional to 81,456.02, 112,412.49 and 45,646.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,456.02 : 112,412.49 = 45,646.34 : x
2. Step 2: Convert to fraction form
   81,456.02/112,412.49 = 45,646.34/x
3. Step 3: Cross multiply
   81,456.02x = 112,412.49 × 45,646.34
4. Step 4: Simplify right side
   81,456.02x = 5,131,218,738.79
5. Step 5: Solve for x
   x = 5,131,218,738.79/81,456.02
6. Step 6: Final answer
   x = 62,993.73