Finding the Fourth Proportional to 117,930.34, 162,743.88 and 64,215.34

Step by Step Solution

1. Step 1: Write the proportion equation
   117,930.34 : 162,743.88 = 64,215.34 : x
2. Step 2: Convert to fraction form
   117,930.34/162,743.88 = 64,215.34/x
3. Step 3: Cross multiply
   117,930.34x = 162,743.88 × 64,215.34
4. Step 4: Simplify right side
   117,930.34x = 10,450,653,587.12
5. Step 5: Solve for x
   x = 10,450,653,587.12/117,930.34
6. Step 6: Final answer
   x = 88,617.18