Finding the Fourth Proportional to 71,633.31, 107,450.78 and 21,713.01

Step by Step Solution

1. Step 1: Write the proportion equation
   71,633.31 : 107,450.78 = 21,713.01 : x
2. Step 2: Convert to fraction form
   71,633.31/107,450.78 = 21,713.01/x
3. Step 3: Cross multiply
   71,633.31x = 107,450.78 × 21,713.01
4. Step 4: Simplify right side
   71,633.31x = 2,333,079,752.08
5. Step 5: Solve for x
   x = 2,333,079,752.08/71,633.31
6. Step 6: Final answer
   x = 32,569.76