Finding the Fourth Proportional to 117,698.41, 162,421.89 and 63,984.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,698.41 : 162,421.89 = 63,984.78 : x
2. Step 2: Convert to fraction form
   117,698.41/162,421.89 = 63,984.78/x
3. Step 3: Cross multiply
   117,698.41x = 162,421.89 × 63,984.78
4. Step 4: Simplify right side
   117,698.41x = 10,392,528,898.83
5. Step 5: Solve for x
   x = 10,392,528,898.83/117,698.41
6. Step 6: Final answer
   x = 88,297.95