Finding the Fourth Proportional to 117,578.49, 162,259.50 and 63,864.55

Step by Step Solution

1. Step 1: Write the proportion equation
   117,578.49 : 162,259.50 = 63,864.55 : x
2. Step 2: Convert to fraction form
   117,578.49/162,259.50 = 63,864.55/x
3. Step 3: Cross multiply
   117,578.49x = 162,259.50 × 63,864.55
4. Step 4: Simplify right side
   117,578.49x = 10,362,629,950.73
5. Step 5: Solve for x
   x = 10,362,629,950.73/117,578.49
6. Step 6: Final answer
   x = 88,133.73