Finding the Fourth Proportional to 23,664.73, 32,657.94 and 12,909.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,664.73 : 32,657.94 = 12,909.78 : x
2. Step 2: Convert to fraction form
   23,664.73/32,657.94 = 12,909.78/x
3. Step 3: Cross multiply
   23,664.73x = 32,657.94 × 12,909.78
4. Step 4: Simplify right side
   23,664.73x = 421,606,943.12
5. Step 5: Solve for x
   x = 421,606,943.12/23,664.73
6. Step 6: Final answer
   x = 17,815.84