Finding the Fourth Proportional to 117,081.86, 161,571.57 and 63,365.60

Step by Step Solution

1. Step 1: Write the proportion equation
   117,081.86 : 161,571.57 = 63,365.60 : x
2. Step 2: Convert to fraction form
   117,081.86/161,571.57 = 63,365.60/x
3. Step 3: Cross multiply
   117,081.86x = 161,571.57 × 63,365.60
4. Step 4: Simplify right side
   117,081.86x = 10,238,079,475.99
5. Step 5: Solve for x
   x = 10,238,079,475.99/117,081.86
6. Step 6: Final answer
   x = 87,443.77