Finding the Fourth Proportional to 117,020.04, 161,487 and 63,304.89

Step by Step Solution

1. Step 1: Write the proportion equation
   117,020.04 : 161,487 = 63,304.89 : x
2. Step 2: Convert to fraction form
   117,020.04/161,487 = 63,304.89/x
3. Step 3: Cross multiply
   117,020.04x = 161,487 × 63,304.89
4. Step 4: Simplify right side
   117,020.04x = 10,222,916,771.43
5. Step 5: Solve for x
   x = 10,222,916,771.43/117,020.04
6. Step 6: Final answer
   x = 87,360.39