Finding the Fourth Proportional to 78,104.00, 117,131.79 and 28,177.61

Step by Step Solution

1. Step 1: Write the proportion equation
   78,104.00 : 117,131.79 = 28,177.61 : x
2. Step 2: Convert to fraction form
   78,104.00/117,131.79 = 28,177.61/x
3. Step 3: Cross multiply
   78,104.00x = 117,131.79 × 28,177.61
4. Step 4: Simplify right side
   78,104.00x = 3,300,494,190.05
5. Step 5: Solve for x
   x = 3,300,494,190.05/78,104.00
6. Step 6: Final answer
   x = 42,257.68