Finding the Fourth Proportional to 78,192.41, 107,905.71 and 42,382.38

Step by Step Solution

1. Step 1: Write the proportion equation
   78,192.41 : 107,905.71 = 42,382.38 : x
2. Step 2: Convert to fraction form
   78,192.41/107,905.71 = 42,382.38/x
3. Step 3: Cross multiply
   78,192.41x = 107,905.71 × 42,382.38
4. Step 4: Simplify right side
   78,192.41x = 4,573,300,805.39
5. Step 5: Solve for x
   x = 4,573,300,805.39/78,192.41
6. Step 6: Final answer
   x = 58,487.79