Finding the Fourth Proportional to 82,291.78, 113,564.73 and 50,478.22

Step by Step Solution

1. Step 1: Write the proportion equation
   82,291.78 : 113,564.73 = 50,478.22 : x
2. Step 2: Convert to fraction form
   82,291.78/113,564.73 = 50,478.22/x
3. Step 3: Cross multiply
   82,291.78x = 113,564.73 × 50,478.22
4. Step 4: Simplify right side
   82,291.78x = 5,732,545,425.18
5. Step 5: Solve for x
   x = 5,732,545,425.18/82,291.78
6. Step 6: Final answer
   x = 69,661.22