Finding the Fourth Proportional to 117,685.32, 162,404.16 and 63,969.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,685.32 : 162,404.16 = 63,969.12 : x
2. Step 2: Convert to fraction form
   117,685.32/162,404.16 = 63,969.12/x
3. Step 3: Cross multiply
   117,685.32x = 162,404.16 × 63,969.12
4. Step 4: Simplify right side
   117,685.32x = 10,388,851,199.54
5. Step 5: Solve for x
   x = 10,388,851,199.54/117,685.32
6. Step 6: Final answer
   x = 88,276.53