Finding the Fourth Proportional to 117,684.72, 162,406.80 and 63,969.84

Step by Step Solution

1. Step 1: Write the proportion equation
   117,684.72 : 162,406.80 = 63,969.84 : x
2. Step 2: Convert to fraction form
   117,684.72/162,406.80 = 63,969.84/x
3. Step 3: Cross multiply
   117,684.72x = 162,406.80 × 63,969.84
4. Step 4: Simplify right side
   117,684.72x = 10,389,137,010.91
5. Step 5: Solve for x
   x = 10,389,137,010.91/117,684.72
6. Step 6: Final answer
   x = 88,279.40