Finding the Fourth Proportional to 23,700.84, 32,706.97 and 12,945.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,700.84 : 32,706.97 = 12,945.72 : x
2. Step 2: Convert to fraction form
   23,700.84/32,706.97 = 12,945.72/x
3. Step 3: Cross multiply
   23,700.84x = 32,706.97 × 12,945.72
4. Step 4: Simplify right side
   23,700.84x = 423,415,210.94
5. Step 5: Solve for x
   x = 423,415,210.94/23,700.84
6. Step 6: Final answer
   x = 17,864.99