Finding the Fourth Proportional to 71,834.94, 107,768.25 and 21,918.89

Step by Step Solution

1. Step 1: Write the proportion equation
   71,834.94 : 107,768.25 = 21,918.89 : x
2. Step 2: Convert to fraction form
   71,834.94/107,768.25 = 21,918.89/x
3. Step 3: Cross multiply
   71,834.94x = 107,768.25 × 21,918.89
4. Step 4: Simplify right side
   71,834.94x = 2,362,160,768.86
5. Step 5: Solve for x
   x = 2,362,160,768.86/71,834.94
6. Step 6: Final answer
   x = 32,883.17