Finding the Fourth Proportional to 78,760.35, 118,065.82 and 31,404.54

Step by Step Solution

1. Step 1: Write the proportion equation
   78,760.35 : 118,065.82 = 31,404.54 : x
2. Step 2: Convert to fraction form
   78,760.35/118,065.82 = 31,404.54/x
3. Step 3: Cross multiply
   78,760.35x = 118,065.82 × 31,404.54
4. Step 4: Simplify right side
   78,760.35x = 3,707,803,189.94
5. Step 5: Solve for x
   x = 3,707,803,189.94/78,760.35
6. Step 6: Final answer
   x = 47,077.03