Finding the Fourth Proportional to 86,026.88, 128,894.72 and 41,674.88

Step by Step Solution

1. Step 1: Write the proportion equation
   86,026.88 : 128,894.72 = 41,674.88 : x
2. Step 2: Convert to fraction form
   86,026.88/128,894.72 = 41,674.88/x
3. Step 3: Cross multiply
   86,026.88x = 128,894.72 × 41,674.88
4. Step 4: Simplify right side
   86,026.88x = 5,371,671,988.63
5. Step 5: Solve for x
   x = 5,371,671,988.63/86,026.88
6. Step 6: Final answer
   x = 62,441.79