Finding the Fourth Proportional to 78,846.35, 118,288.43 and 26,256.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,846.35 : 118,288.43 = 26,256.31 : x
2. Step 2: Convert to fraction form
   78,846.35/118,288.43 = 26,256.31/x
3. Step 3: Cross multiply
   78,846.35x = 118,288.43 × 26,256.31
4. Step 4: Simplify right side
   78,846.35x = 3,105,817,556.21
5. Step 5: Solve for x
   x = 3,105,817,556.21/78,846.35
6. Step 6: Final answer
   x = 39,390.76