Finding the Fourth Proportional to 78,758.38, 108,604.02 and 51,866.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,758.38 : 108,604.02 = 51,866.56 : x
2. Step 2: Convert to fraction form
   78,758.38/108,604.02 = 51,866.56/x
3. Step 3: Cross multiply
   78,758.38x = 108,604.02 × 51,866.56
4. Step 4: Simplify right side
   78,758.38x = 5,632,916,919.57
5. Step 5: Solve for x
   x = 5,632,916,919.57/78,758.38
6. Step 6: Final answer
   x = 71,521.49