Finding the Fourth Proportional to 21,440.95, 32,166.15 and 7,208.94

Step by Step Solution

1. Step 1: Write the proportion equation
   21,440.95 : 32,166.15 = 7,208.94 : x
2. Step 2: Convert to fraction form
   21,440.95/32,166.15 = 7,208.94/x
3. Step 3: Cross multiply
   21,440.95x = 32,166.15 × 7,208.94
4. Step 4: Simplify right side
   21,440.95x = 231,883,845.38
5. Step 5: Solve for x
   x = 231,883,845.38/21,440.95
6. Step 6: Final answer
   x = 10,815.00