Finding the Fourth Proportional to 78,616.06, 117,925 and 33,631.30

Step by Step Solution

1. Step 1: Write the proportion equation
   78,616.06 : 117,925 = 33,631.30 : x
2. Step 2: Convert to fraction form
   78,616.06/117,925 = 33,631.30/x
3. Step 3: Cross multiply
   78,616.06x = 117,925 × 33,631.30
4. Step 4: Simplify right side
   78,616.06x = 3,965,971,052.50
5. Step 5: Solve for x
   x = 3,965,971,052.50/78,616.06
6. Step 6: Final answer
   x = 50,447.34