Finding the Fourth Proportional to 85,448.39, 117,915.18 and 49,147.10

Step by Step Solution

1. Step 1: Write the proportion equation
   85,448.39 : 117,915.18 = 49,147.10 : x
2. Step 2: Convert to fraction form
   85,448.39/117,915.18 = 49,147.10/x
3. Step 3: Cross multiply
   85,448.39x = 117,915.18 × 49,147.10
4. Step 4: Simplify right side
   85,448.39x = 5,795,188,553.40
5. Step 5: Solve for x
   x = 5,795,188,553.40/85,448.39
6. Step 6: Final answer
   x = 67,820.93