Finding the Fourth Proportional to 85,196.21, 117,571.23 and 49,407.44

Step by Step Solution

1. Step 1: Write the proportion equation
   85,196.21 : 117,571.23 = 49,407.44 : x
2. Step 2: Convert to fraction form
   85,196.21/117,571.23 = 49,407.44/x
3. Step 3: Cross multiply
   85,196.21x = 117,571.23 × 49,407.44
4. Step 4: Simplify right side
   85,196.21x = 5,808,892,904.10
5. Step 5: Solve for x
   x = 5,808,892,904.10/85,196.21
6. Step 6: Final answer
   x = 68,182.53