Finding the Fourth Proportional to 117,964.62, 162,789.84 and 64,249.47

Step by Step Solution

1. Step 1: Write the proportion equation
   117,964.62 : 162,789.84 = 64,249.47 : x
2. Step 2: Convert to fraction form
   117,964.62/162,789.84 = 64,249.47/x
3. Step 3: Cross multiply
   117,964.62x = 162,789.84 × 64,249.47
4. Step 4: Simplify right side
   117,964.62x = 10,459,160,941.38
5. Step 5: Solve for x
   x = 10,459,160,941.38/117,964.62
6. Step 6: Final answer
   x = 88,663.54