Finding the Fourth Proportional to 117,680.91, 162,402.81 and 63,969.54

Step by Step Solution

1. Step 1: Write the proportion equation
   117,680.91 : 162,402.81 = 63,969.54 : x
2. Step 2: Convert to fraction form
   117,680.91/162,402.81 = 63,969.54/x
3. Step 3: Cross multiply
   117,680.91x = 162,402.81 × 63,969.54
4. Step 4: Simplify right side
   117,680.91x = 10,388,833,050.41
5. Step 5: Solve for x
   x = 10,388,833,050.41/117,680.91
6. Step 6: Final answer
   x = 88,279.68