Finding the Fourth Proportional to 83,142.88, 114,739.69 and 45,419.56

Step by Step Solution

1. Step 1: Write the proportion equation
   83,142.88 : 114,739.69 = 45,419.56 : x
2. Step 2: Convert to fraction form
   83,142.88/114,739.69 = 45,419.56/x
3. Step 3: Cross multiply
   83,142.88x = 114,739.69 × 45,419.56
4. Step 4: Simplify right side
   83,142.88x = 5,211,425,547.09
5. Step 5: Solve for x
   x = 5,211,425,547.09/83,142.88
6. Step 6: Final answer
   x = 62,680.36