Finding the Fourth Proportional to 81,229.56, 112,096.50 and 45,419.46

Step by Step Solution

1. Step 1: Write the proportion equation
   81,229.56 : 112,096.50 = 45,419.46 : x
2. Step 2: Convert to fraction form
   81,229.56/112,096.50 = 45,419.46/x
3. Step 3: Cross multiply
   81,229.56x = 112,096.50 × 45,419.46
4. Step 4: Simplify right side
   81,229.56x = 5,091,362,497.89
5. Step 5: Solve for x
   x = 5,091,362,497.89/81,229.56
6. Step 6: Final answer
   x = 62,678.69