Finding the Fourth Proportional to 78,433.38, 108,183.34 and 51,567.30

Step by Step Solution

1. Step 1: Write the proportion equation
   78,433.38 : 108,183.34 = 51,567.30 : x
2. Step 2: Convert to fraction form
   78,433.38/108,183.34 = 51,567.30/x
3. Step 3: Cross multiply
   78,433.38x = 108,183.34 × 51,567.30
4. Step 4: Simplify right side
   78,433.38x = 5,578,722,748.78
5. Step 5: Solve for x
   x = 5,578,722,748.78/78,433.38
6. Step 6: Final answer
   x = 71,126.89