Finding the Fourth Proportional to 21,912.50, 32,852.34 and 7,112.58

Step by Step Solution

1. Step 1: Write the proportion equation
   21,912.50 : 32,852.34 = 7,112.58 : x
2. Step 2: Convert to fraction form
   21,912.50/32,852.34 = 7,112.58/x
3. Step 3: Cross multiply
   21,912.50x = 32,852.34 × 7,112.58
4. Step 4: Simplify right side
   21,912.50x = 233,664,896.44
5. Step 5: Solve for x
   x = 233,664,896.44/21,912.50
6. Step 6: Final answer
   x = 10,663.54