Finding the Fourth Proportional to 78,760.68, 108,686.46 and 42,950.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,760.68 : 108,686.46 = 42,950.04 : x
2. Step 2: Convert to fraction form
   78,760.68/108,686.46 = 42,950.04/x
3. Step 3: Cross multiply
   78,760.68x = 108,686.46 × 42,950.04
4. Step 4: Simplify right side
   78,760.68x = 4,668,087,804.46
5. Step 5: Solve for x
   x = 4,668,087,804.46/78,760.68
6. Step 6: Final answer
   x = 59,269.27