Finding the Fourth Proportional to 23,736.81, 32,756.76 and 12,981.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,736.81 : 32,756.76 = 12,981.72 : x
2. Step 2: Convert to fraction form
   23,736.81/32,756.76 = 12,981.72/x
3. Step 3: Cross multiply
   23,736.81x = 32,756.76 × 12,981.72
4. Step 4: Simplify right side
   23,736.81x = 425,239,086.43
5. Step 5: Solve for x
   x = 425,239,086.43/23,736.81
6. Step 6: Final answer
   x = 17,914.75