Finding the Fourth Proportional to 147,978.54, 204,220.81 and 83,453.55

Step by Step Solution

1. Step 1: Write the proportion equation
   147,978.54 : 204,220.81 = 83,453.55 : x
2. Step 2: Convert to fraction form
   147,978.54/204,220.81 = 83,453.55/x
3. Step 3: Cross multiply
   147,978.54x = 204,220.81 × 83,453.55
4. Step 4: Simplify right side
   147,978.54x = 17,042,952,193.24
5. Step 5: Solve for x
   x = 17,042,952,193.24/147,978.54
6. Step 6: Final answer
   x = 115,171.78