Finding the Fourth Proportional to 77,571.50, 116,409.18 and 33,209.10

Step by Step Solution

1. Step 1: Write the proportion equation
   77,571.50 : 116,409.18 = 33,209.10 : x
2. Step 2: Convert to fraction form
   77,571.50/116,409.18 = 33,209.10/x
3. Step 3: Cross multiply
   77,571.50x = 116,409.18 × 33,209.10
4. Step 4: Simplify right side
   77,571.50x = 3,865,844,099.54
5. Step 5: Solve for x
   x = 3,865,844,099.54/77,571.50
6. Step 6: Final answer
   x = 49,835.88