Finding the Fourth Proportional to 78,265.98, 117,321.75 and 50,105.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,265.98 : 117,321.75 = 50,105.88 : x
2. Step 2: Convert to fraction form
   78,265.98/117,321.75 = 50,105.88/x
3. Step 3: Cross multiply
   78,265.98x = 117,321.75 × 50,105.88
4. Step 4: Simplify right side
   78,265.98x = 5,878,509,526.89
5. Step 5: Solve for x
   x = 5,878,509,526.89/78,265.98
6. Step 6: Final answer
   x = 75,109.38