Finding the Fourth Proportional to 78,405.09, 108,199.47 and 42,595.41

Step by Step Solution

1. Step 1: Write the proportion equation
   78,405.09 : 108,199.47 = 42,595.41 : x
2. Step 2: Convert to fraction form
   78,405.09/108,199.47 = 42,595.41/x
3. Step 3: Cross multiply
   78,405.09x = 108,199.47 × 42,595.41
4. Step 4: Simplify right side
   78,405.09x = 4,608,800,786.43
5. Step 5: Solve for x
   x = 4,608,800,786.43/78,405.09
6. Step 6: Final answer
   x = 58,781.91