Finding the Fourth Proportional to 78,193.91, 107,907.78 and 42,383.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,193.91 : 107,907.78 = 42,383.88 : x
2. Step 2: Convert to fraction form
   78,193.91/107,907.78 = 42,383.88/x
3. Step 3: Cross multiply
   78,193.91x = 107,907.78 × 42,383.88
4. Step 4: Simplify right side
   78,193.91x = 4,573,550,398.59
5. Step 5: Solve for x
   x = 4,573,550,398.59/78,193.91
6. Step 6: Final answer
   x = 58,489.86