Finding the Fourth Proportional to 83,883.29, 115,720.78 and 49,872.49

Step by Step Solution

1. Step 1: Write the proportion equation
   83,883.29 : 115,720.78 = 49,872.49 : x
2. Step 2: Convert to fraction form
   83,883.29/115,720.78 = 49,872.49/x
3. Step 3: Cross multiply
   83,883.29x = 115,720.78 × 49,872.49
4. Step 4: Simplify right side
   83,883.29x = 5,771,283,443.34
5. Step 5: Solve for x
   x = 5,771,283,443.34/83,883.29
6. Step 6: Final answer
   x = 68,801.35