Finding the Fourth Proportional to 12,672.27, 17,483.40 and 7,634.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672.27 : 17,483.40 = 7,634.59 : x
2. Step 2: Convert to fraction form
   12,672.27/17,483.40 = 7,634.59/x
3. Step 3: Cross multiply
   12,672.27x = 17,483.40 × 7,634.59
4. Step 4: Simplify right side
   12,672.27x = 133,478,547.10
5. Step 5: Solve for x
   x = 133,478,547.10/12,672.27
6. Step 6: Final answer
   x = 10,533.12