Finding the Fourth Proportional to 71,433.89, 107,116.20 and 21,504.68

Step by Step Solution

1. Step 1: Write the proportion equation
   71,433.89 : 107,116.20 = 21,504.68 : x
2. Step 2: Convert to fraction form
   71,433.89/107,116.20 = 21,504.68/x
3. Step 3: Cross multiply
   71,433.89x = 107,116.20 × 21,504.68
4. Step 4: Simplify right side
   71,433.89x = 2,303,499,603.82
5. Step 5: Solve for x
   x = 2,303,499,603.82/71,433.89
6. Step 6: Final answer
   x = 32,246.59