Finding the Fourth Proportional to 117,019.71, 161,487 and 63,304.56

Step by Step Solution

1. Step 1: Write the proportion equation
   117,019.71 : 161,487 = 63,304.56 : x
2. Step 2: Convert to fraction form
   117,019.71/161,487 = 63,304.56/x
3. Step 3: Cross multiply
   117,019.71x = 161,487 × 63,304.56
4. Step 4: Simplify right side
   117,019.71x = 10,222,863,480.72
5. Step 5: Solve for x
   x = 10,222,863,480.72/117,019.71
6. Step 6: Final answer
   x = 87,360.18