Finding the Fourth Proportional to 83,561.12, 115,329.09 and 49,588.34

Step by Step Solution

1. Step 1: Write the proportion equation
   83,561.12 : 115,329.09 = 49,588.34 : x
2. Step 2: Convert to fraction form
   83,561.12/115,329.09 = 49,588.34/x
3. Step 3: Cross multiply
   83,561.12x = 115,329.09 × 49,588.34
4. Step 4: Simplify right side
   83,561.12x = 5,718,978,126.81
5. Step 5: Solve for x
   x = 5,718,978,126.81/83,561.12
6. Step 6: Final answer
   x = 68,440.66