Finding the Fourth Proportional to 78,936.76, 108,929.49 and 43,128.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,936.76 : 108,929.49 = 43,128.01 : x
2. Step 2: Convert to fraction form
   78,936.76/108,929.49 = 43,128.01/x
3. Step 3: Cross multiply
   78,936.76x = 108,929.49 × 43,128.01
4. Step 4: Simplify right side
   78,936.76x = 4,697,911,589.37
5. Step 5: Solve for x
   x = 4,697,911,589.37/78,936.76
6. Step 6: Final answer
   x = 59,514.88