Finding the Fourth Proportional to 71,835.94, 107,769.75 and 21,919.89

Step by Step Solution

1. Step 1: Write the proportion equation
   71,835.94 : 107,769.75 = 21,919.89 : x
2. Step 2: Convert to fraction form
   71,835.94/107,769.75 = 21,919.89/x
3. Step 3: Cross multiply
   71,835.94x = 107,769.75 × 21,919.89
4. Step 4: Simplify right side
   71,835.94x = 2,362,301,065.33
5. Step 5: Solve for x
   x = 2,362,301,065.33/71,835.94
6. Step 6: Final answer
   x = 32,884.67