Finding the Fourth Proportional to 78,134.78, 107,823.78 and 45,868.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,134.78 : 107,823.78 = 45,868.89 : x
2. Step 2: Convert to fraction form
   78,134.78/107,823.78 = 45,868.89/x
3. Step 3: Cross multiply
   78,134.78x = 107,823.78 × 45,868.89
4. Step 4: Simplify right side
   78,134.78x = 4,945,757,006.65
5. Step 5: Solve for x
   x = 4,945,757,006.65/78,134.78
6. Step 6: Final answer
   x = 63,297.76