Finding the Fourth Proportional to 117,019.28, 161,487 and 63,304.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,019.28 : 161,487 = 63,304.52 : x
2. Step 2: Convert to fraction form
   117,019.28/161,487 = 63,304.52/x
3. Step 3: Cross multiply
   117,019.28x = 161,487 × 63,304.52
4. Step 4: Simplify right side
   117,019.28x = 10,222,857,021.24
5. Step 5: Solve for x
   x = 10,222,857,021.24/117,019.28
6. Step 6: Final answer
   x = 87,360.45