Finding the Fourth Proportional to 78,104.68, 107,783.82 and 42,293.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,104.68 : 107,783.82 = 42,293.80 : x
2. Step 2: Convert to fraction form
   78,104.68/107,783.82 = 42,293.80/x
3. Step 3: Cross multiply
   78,104.68x = 107,783.82 × 42,293.80
4. Step 4: Simplify right side
   78,104.68x = 4,558,587,326.32
5. Step 5: Solve for x
   x = 4,558,587,326.32/78,104.68
6. Step 6: Final answer
   x = 58,365.10