Finding the Fourth Proportional to 117,636.47, 162,339.35 and 63,921.49

Step by Step Solution

1. Step 1: Write the proportion equation
   117,636.47 : 162,339.35 = 63,921.49 : x
2. Step 2: Convert to fraction form
   117,636.47/162,339.35 = 63,921.49/x
3. Step 3: Cross multiply
   117,636.47x = 162,339.35 × 63,921.49
4. Step 4: Simplify right side
   117,636.47x = 10,376,972,891.59
5. Step 5: Solve for x
   x = 10,376,972,891.59/117,636.47
6. Step 6: Final answer
   x = 88,212.21