Finding the Fourth Proportional to 78,936.93, 118,433.34 and 49,320.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,936.93 : 118,433.34 = 49,320.09 : x
2. Step 2: Convert to fraction form
   78,936.93/118,433.34 = 49,320.09/x
3. Step 3: Cross multiply
   78,936.93x = 118,433.34 × 49,320.09
4. Step 4: Simplify right side
   78,936.93x = 5,841,142,987.80
5. Step 5: Solve for x
   x = 5,841,142,987.80/78,936.93
6. Step 6: Final answer
   x = 73,997.60