Finding the Fourth Proportional to 70,909.98, 106,364.49 and 21,661.98

Step by Step Solution

1. Step 1: Write the proportion equation
   70,909.98 : 106,364.49 = 21,661.98 : x
2. Step 2: Convert to fraction form
   70,909.98/106,364.49 = 21,661.98/x
3. Step 3: Cross multiply
   70,909.98x = 106,364.49 × 21,661.98
4. Step 4: Simplify right side
   70,909.98x = 2,304,065,455.09
5. Step 5: Solve for x
   x = 2,304,065,455.09/70,909.98
6. Step 6: Final answer
   x = 32,492.82