Finding the Fourth Proportional to 83,158.78, 114,726.54 and 51,272.32

Step by Step Solution

1. Step 1: Write the proportion equation
   83,158.78 : 114,726.54 = 51,272.32 : x
2. Step 2: Convert to fraction form
   83,158.78/114,726.54 = 51,272.32/x
3. Step 3: Cross multiply
   83,158.78x = 114,726.54 × 51,272.32
4. Step 4: Simplify right side
   83,158.78x = 5,882,295,871.37
5. Step 5: Solve for x
   x = 5,882,295,871.37/83,158.78
6. Step 6: Final answer
   x = 70,735.72