Finding the Fourth Proportional to 85,113.60, 117,456.76 and 49,310.53

Step by Step Solution

1. Step 1: Write the proportion equation
   85,113.60 : 117,456.76 = 49,310.53 : x
2. Step 2: Convert to fraction form
   85,113.60/117,456.76 = 49,310.53/x
3. Step 3: Cross multiply
   85,113.60x = 117,456.76 × 49,310.53
4. Step 4: Simplify right side
   85,113.60x = 5,791,855,111.62
5. Step 5: Solve for x
   x = 5,791,855,111.62/85,113.60
6. Step 6: Final answer
   x = 68,048.53