Finding the Fourth Proportional to 85,300.78, 117,705.62 and 49,483.84

Step by Step Solution

1. Step 1: Write the proportion equation
   85,300.78 : 117,705.62 = 49,483.84 : x
2. Step 2: Convert to fraction form
   85,300.78/117,705.62 = 49,483.84/x
3. Step 3: Cross multiply
   85,300.78x = 117,705.62 × 49,483.84
4. Step 4: Simplify right side
   85,300.78x = 5,824,526,067.18
5. Step 5: Solve for x
   x = 5,824,526,067.18/85,300.78
6. Step 6: Final answer
   x = 68,282.21