Finding the Fourth Proportional to 117,384.72, 161,989.72 and 63,668.58

Step by Step Solution

1. Step 1: Write the proportion equation
   117,384.72 : 161,989.72 = 63,668.58 : x
2. Step 2: Convert to fraction form
   117,384.72/161,989.72 = 63,668.58/x
3. Step 3: Cross multiply
   117,384.72x = 161,989.72 × 63,668.58
4. Step 4: Simplify right side
   117,384.72x = 10,313,655,949.69
5. Step 5: Solve for x
   x = 10,313,655,949.69/117,384.72
6. Step 6: Final answer
   x = 87,862.00