Finding the Fourth Proportional to 85,411.48, 117,869.43 and 47,173

Step by Step Solution

1. Step 1: Write the proportion equation
   85,411.48 : 117,869.43 = 47,173 : x
2. Step 2: Convert to fraction form
   85,411.48/117,869.43 = 47,173/x
3. Step 3: Cross multiply
   85,411.48x = 117,869.43 × 47,173
4. Step 4: Simplify right side
   85,411.48x = 5,560,254,621.39
5. Step 5: Solve for x
   x = 5,560,254,621.39/85,411.48
6. Step 6: Final answer
   x = 65,099.62