Finding the Fourth Proportional to 78,765.03, 108,713.97 and 51,912.30

Step by Step Solution

1. Step 1: Write the proportion equation
   78,765.03 : 108,713.97 = 51,912.30 : x
2. Step 2: Convert to fraction form
   78,765.03/108,713.97 = 51,912.30/x
3. Step 3: Cross multiply
   78,765.03x = 108,713.97 × 51,912.30
4. Step 4: Simplify right side
   78,765.03x = 5,643,592,224.83
5. Step 5: Solve for x
   x = 5,643,592,224.83/78,765.03
6. Step 6: Final answer
   x = 71,650.99