Finding the Fourth Proportional to 78,795.94, 108,738.42 and 42,986.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,795.94 : 108,738.42 = 42,986.10 : x
2. Step 2: Convert to fraction form
   78,795.94/108,738.42 = 42,986.10/x
3. Step 3: Cross multiply
   78,795.94x = 108,738.42 × 42,986.10
4. Step 4: Simplify right side
   78,795.94x = 4,674,240,595.96
5. Step 5: Solve for x
   x = 4,674,240,595.96/78,795.94
6. Step 6: Final answer
   x = 59,320.83