Finding the Fourth Proportional to 23,283, 32,130.60 and 12,672.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,283 : 32,130.60 = 12,672.72 : x
2. Step 2: Convert to fraction form
   23,283/32,130.60 = 12,672.72/x
3. Step 3: Cross multiply
   23,283x = 32,130.60 × 12,672.72
4. Step 4: Simplify right side
   23,283x = 407,182,097.23
5. Step 5: Solve for x
   x = 407,182,097.23/23,283
6. Step 6: Final answer
   x = 17,488.39