Finding the Fourth Proportional to 81,265.37, 112,146.50 and 45,453.09

Step by Step Solution

1. Step 1: Write the proportion equation
   81,265.37 : 112,146.50 = 45,453.09 : x
2. Step 2: Convert to fraction form
   81,265.37/112,146.50 = 45,453.09/x
3. Step 3: Cross multiply
   81,265.37x = 112,146.50 × 45,453.09
4. Step 4: Simplify right side
   81,265.37x = 5,097,404,957.69
5. Step 5: Solve for x
   x = 5,097,404,957.69/81,265.37
6. Step 6: Final answer
   x = 62,725.43