Finding the Fourth Proportional to 78,855.30, 108,792.36 and 50,576.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,855.30 : 108,792.36 = 50,576.58 : x
2. Step 2: Convert to fraction form
   78,855.30/108,792.36 = 50,576.58/x
3. Step 3: Cross multiply
   78,855.30x = 108,792.36 × 50,576.58
4. Step 4: Simplify right side
   78,855.30x = 5,502,345,498.93
5. Step 5: Solve for x
   x = 5,502,345,498.93/78,855.30
6. Step 6: Final answer
   x = 69,777.75