Finding the Fourth Proportional to 78,103.57, 107,783.44 and 42,293.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,103.57 : 107,783.44 = 42,293.58 : x
2. Step 2: Convert to fraction form
   78,103.57/107,783.44 = 42,293.58/x
3. Step 3: Cross multiply
   78,103.57x = 107,783.44 × 42,293.58
4. Step 4: Simplify right side
   78,103.57x = 4,558,547,542.32
5. Step 5: Solve for x
   x = 4,558,547,542.32/78,103.57
6. Step 6: Final answer
   x = 58,365.42