Finding the Fourth Proportional to 82,595.20, 113,991.20 and 49,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,595.20 : 113,991.20 = 49,061.28 : x
2. Step 2: Convert to fraction form
   82,595.20/113,991.20 = 49,061.28/x
3. Step 3: Cross multiply
   82,595.20x = 113,991.20 × 49,061.28
4. Step 4: Simplify right side
   82,595.20x = 5,592,554,180.74
5. Step 5: Solve for x
   x = 5,592,554,180.74/82,595.20
6. Step 6: Final answer
   x = 67,710.40