Finding the Fourth Proportional to 78,759.68, 108,685.08 and 42,949.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,759.68 : 108,685.08 = 42,949.04 : x
2. Step 2: Convert to fraction form
   78,759.68/108,685.08 = 42,949.04/x
3. Step 3: Cross multiply
   78,759.68x = 108,685.08 × 42,949.04
4. Step 4: Simplify right side
   78,759.68x = 4,667,919,848.32
5. Step 5: Solve for x
   x = 4,667,919,848.32/78,759.68
6. Step 6: Final answer
   x = 59,267.89