Finding the Fourth Proportional to 85,156.58, 117,510.41 and 49,340.21

Step by Step Solution

1. Step 1: Write the proportion equation
   85,156.58 : 117,510.41 = 49,340.21 : x
2. Step 2: Convert to fraction form
   85,156.58/117,510.41 = 49,340.21/x
3. Step 3: Cross multiply
   85,156.58x = 117,510.41 × 49,340.21
4. Step 4: Simplify right side
   85,156.58x = 5,797,987,842.38
5. Step 5: Solve for x
   x = 5,797,987,842.38/85,156.58
6. Step 6: Final answer
   x = 68,086.20