Finding the Fourth Proportional to 83,563.36, 115,298.78 and 49,554.57

Step by Step Solution

1. Step 1: Write the proportion equation
   83,563.36 : 115,298.78 = 49,554.57 : x
2. Step 2: Convert to fraction form
   83,563.36/115,298.78 = 49,554.57/x
3. Step 3: Cross multiply
   83,563.36x = 115,298.78 × 49,554.57
4. Step 4: Simplify right side
   83,563.36x = 5,713,581,011.82
5. Step 5: Solve for x
   x = 5,713,581,011.82/83,563.36
6. Step 6: Final answer
   x = 68,374.24