Finding the Fourth Proportional to 45,419.01, 68,128.89 and 15,836.79

Step by Step Solution

1. Step 1: Write the proportion equation
   45,419.01 : 68,128.89 = 15,836.79 : x
2. Step 2: Convert to fraction form
   45,419.01/68,128.89 = 15,836.79/x
3. Step 3: Cross multiply
   45,419.01x = 68,128.89 × 15,836.79
4. Step 4: Simplify right side
   45,419.01x = 1,078,942,923.86
5. Step 5: Solve for x
   x = 1,078,942,923.86/45,419.01
6. Step 6: Final answer
   x = 23,755.32