Finding the Fourth Proportional to 83,636.74, 115,440.83 and 51,787.54

Step by Step Solution

1. Step 1: Write the proportion equation
   83,636.74 : 115,440.83 = 51,787.54 : x
2. Step 2: Convert to fraction form
   83,636.74/115,440.83 = 51,787.54/x
3. Step 3: Cross multiply
   83,636.74x = 115,440.83 × 51,787.54
4. Step 4: Simplify right side
   83,636.74x = 5,978,396,601.26
5. Step 5: Solve for x
   x = 5,978,396,601.26/83,636.74
6. Step 6: Final answer
   x = 71,480.51