Finding the Fourth Proportional to 16,588, 22,910.88 and 10,989.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,588 : 22,910.88 = 10,989.28 : x
2. Step 2: Convert to fraction form
   16,588/22,910.88 = 10,989.28/x
3. Step 3: Cross multiply
   16,588x = 22,910.88 × 10,989.28
4. Step 4: Simplify right side
   16,588x = 251,774,075.37
5. Step 5: Solve for x
   x = 251,774,075.37/16,588
6. Step 6: Final answer
   x = 15,178.09