Finding the Fourth Proportional to 85,158.71, 117,519.06 and 49,369.47

Step by Step Solution

1. Step 1: Write the proportion equation
   85,158.71 : 117,519.06 = 49,369.47 : x
2. Step 2: Convert to fraction form
   85,158.71/117,519.06 = 49,369.47/x
3. Step 3: Cross multiply
   85,158.71x = 117,519.06 × 49,369.47
4. Step 4: Simplify right side
   85,158.71x = 5,801,852,872.66
5. Step 5: Solve for x
   x = 5,801,852,872.66/85,158.71
6. Step 6: Final answer
   x = 68,129.88