Finding the Fourth Proportional to 17,128.56, 25,673.04 and 7,875.12

Step by Step Solution

1. Step 1: Write the proportion equation
   17,128.56 : 25,673.04 = 7,875.12 : x
2. Step 2: Convert to fraction form
   17,128.56/25,673.04 = 7,875.12/x
3. Step 3: Cross multiply
   17,128.56x = 25,673.04 × 7,875.12
4. Step 4: Simplify right side
   17,128.56x = 202,178,270.76
5. Step 5: Solve for x
   x = 202,178,270.76/17,128.56
6. Step 6: Final answer
   x = 11,803.58