Finding the Fourth Proportional to 78,685.48, 118,040.10 and 26,083

Step by Step Solution

1. Step 1: Write the proportion equation
   78,685.48 : 118,040.10 = 26,083 : x
2. Step 2: Convert to fraction form
   78,685.48/118,040.10 = 26,083/x
3. Step 3: Cross multiply
   78,685.48x = 118,040.10 × 26,083
4. Step 4: Simplify right side
   78,685.48x = 3,078,839,928.30
5. Step 5: Solve for x
   x = 3,078,839,928.30/78,685.48
6. Step 6: Final answer
   x = 39,128.44