Finding the Fourth Proportional to 117,816.09, 162,590.25 and 64,103.15

Step by Step Solution

1. Step 1: Write the proportion equation
   117,816.09 : 162,590.25 = 64,103.15 : x
2. Step 2: Convert to fraction form
   117,816.09/162,590.25 = 64,103.15/x
3. Step 3: Cross multiply
   117,816.09x = 162,590.25 × 64,103.15
4. Step 4: Simplify right side
   117,816.09x = 10,422,546,371.34
5. Step 5: Solve for x
   x = 10,422,546,371.34/117,816.09
6. Step 6: Final answer
   x = 88,464.54