Finding the Fourth Proportional to 78,626.25, 108,500.97 and 42,816.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,626.25 : 108,500.97 = 42,816.18 : x
2. Step 2: Convert to fraction form
   78,626.25/108,500.97 = 42,816.18/x
3. Step 3: Cross multiply
   78,626.25x = 108,500.97 × 42,816.18
4. Step 4: Simplify right side
   78,626.25x = 4,645,597,061.69
5. Step 5: Solve for x
   x = 4,645,597,061.69/78,626.25
6. Step 6: Final answer
   x = 59,084.56