Finding the Fourth Proportional to 78,760.30, 108,687.24 and 42,951

Step by Step Solution

1. Step 1: Write the proportion equation
   78,760.30 : 108,687.24 = 42,951 : x
2. Step 2: Convert to fraction form
   78,760.30/108,687.24 = 42,951/x
3. Step 3: Cross multiply
   78,760.30x = 108,687.24 × 42,951
4. Step 4: Simplify right side
   78,760.30x = 4,668,225,645.24
5. Step 5: Solve for x
   x = 4,668,225,645.24/78,760.30
6. Step 6: Final answer
   x = 59,271.30