Finding the Fourth Proportional to 117,020.28, 161,488.38 and 63,305.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,020.28 : 161,488.38 = 63,305.52 : x
2. Step 2: Convert to fraction form
   117,020.28/161,488.38 = 63,305.52/x
3. Step 3: Cross multiply
   117,020.28x = 161,488.38 × 63,305.52
4. Step 4: Simplify right side
   117,020.28x = 10,223,105,869.86
5. Step 5: Solve for x
   x = 10,223,105,869.86/117,020.28
6. Step 6: Final answer
   x = 87,361.83