Finding the Fourth Proportional to 12,984.57, 17,924.36 and 10,106.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,984.57 : 17,924.36 = 10,106.78 : x
2. Step 2: Convert to fraction form
   12,984.57/17,924.36 = 10,106.78/x
3. Step 3: Cross multiply
   12,984.57x = 17,924.36 × 10,106.78
4. Step 4: Simplify right side
   12,984.57x = 181,157,423.01
5. Step 5: Solve for x
   x = 181,157,423.01/12,984.57
6. Step 6: Final answer
   x = 13,951.75