Finding the Fourth Proportional to 117,268.67, 161,830.35 and 63,555

Step by Step Solution

1. Step 1: Write the proportion equation
   117,268.67 : 161,830.35 = 63,555 : x
2. Step 2: Convert to fraction form
   117,268.67/161,830.35 = 63,555/x
3. Step 3: Cross multiply
   117,268.67x = 161,830.35 × 63,555
4. Step 4: Simplify right side
   117,268.67x = 10,285,127,894.25
5. Step 5: Solve for x
   x = 10,285,127,894.25/117,268.67
6. Step 6: Final answer
   x = 87,705.68