Finding the Fourth Proportional to 21,813.50, 32,699.43 and 7,012.01

Step by Step Solution

1. Step 1: Write the proportion equation
   21,813.50 : 32,699.43 = 7,012.01 : x
2. Step 2: Convert to fraction form
   21,813.50/32,699.43 = 7,012.01/x
3. Step 3: Cross multiply
   21,813.50x = 32,699.43 × 7,012.01
4. Step 4: Simplify right side
   21,813.50x = 229,288,566.66
5. Step 5: Solve for x
   x = 229,288,566.66/21,813.50
6. Step 6: Final answer
   x = 10,511.32