Finding the Fourth Proportional to 21,499.76, 32,262.10 and 9,018.68

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.76 : 32,262.10 = 9,018.68 : x
2. Step 2: Convert to fraction form
   21,499.76/32,262.10 = 9,018.68/x
3. Step 3: Cross multiply
   21,499.76x = 32,262.10 × 9,018.68
4. Step 4: Simplify right side
   21,499.76x = 290,961,556.03
5. Step 5: Solve for x
   x = 290,961,556.03/21,499.76
6. Step 6: Final answer
   x = 13,533.25