Finding the Fourth Proportional to 117,085.10, 161,577.90 and 63,370.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,085.10 : 161,577.90 = 63,370.10 : x
2. Step 2: Convert to fraction form
   117,085.10/161,577.90 = 63,370.10/x
3. Step 3: Cross multiply
   117,085.10x = 161,577.90 × 63,370.10
4. Step 4: Simplify right side
   117,085.10x = 10,239,206,872.90
5. Step 5: Solve for x
   x = 10,239,206,872.90/117,085.10
6. Step 6: Final answer
   x = 87,450.98