Finding the Fourth Proportional to 83,891.40, 115,786.71 and 48,105.60

Step by Step Solution

1. Step 1: Write the proportion equation
   83,891.40 : 115,786.71 = 48,105.60 : x
2. Step 2: Convert to fraction form
   83,891.40/115,786.71 = 48,105.60/x
3. Step 3: Cross multiply
   83,891.40x = 115,786.71 × 48,105.60
4. Step 4: Simplify right side
   83,891.40x = 5,569,989,156.58
5. Step 5: Solve for x
   x = 5,569,989,156.58/83,891.40
6. Step 6: Final answer
   x = 66,395.23