Finding the Fourth Proportional to 12,150.60, 16,767.86 and 7,047.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.60 : 16,767.86 = 7,047.10 : x
2. Step 2: Convert to fraction form
   12,150.60/16,767.86 = 7,047.10/x
3. Step 3: Cross multiply
   12,150.60x = 16,767.86 × 7,047.10
4. Step 4: Simplify right side
   12,150.60x = 118,164,786.21
5. Step 5: Solve for x
   x = 118,164,786.21/12,150.60
6. Step 6: Final answer
   x = 9,725.02