Finding the Fourth Proportional to 23,662.59, 32,653.31 and 12,907.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,662.59 : 32,653.31 = 12,907.20 : x
2. Step 2: Convert to fraction form
   23,662.59/32,653.31 = 12,907.20/x
3. Step 3: Cross multiply
   23,662.59x = 32,653.31 × 12,907.20
4. Step 4: Simplify right side
   23,662.59x = 421,462,802.83
5. Step 5: Solve for x
   x = 421,462,802.83/23,662.59
6. Step 6: Final answer
   x = 17,811.36