Finding the Fourth Proportional to 78,298.92, 108,052.81 and 42,488.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78,298.92 : 108,052.81 = 42,488.94 : x
2. Step 2: Convert to fraction form
   78,298.92/108,052.81 = 42,488.94/x
3. Step 3: Cross multiply
   78,298.92x = 108,052.81 × 42,488.94
4. Step 4: Simplify right side
   78,298.92x = 4,591,049,360.92
5. Step 5: Solve for x
   x = 4,591,049,360.92/78,298.92
6. Step 6: Final answer
   x = 58,634.90