Finding the Fourth Proportional to 12,483.28, 17,224.68 and 7,445.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,483.28 : 17,224.68 = 7,445.62 : x
2. Step 2: Convert to fraction form
   12,483.28/17,224.68 = 7,445.62/x
3. Step 3: Cross multiply
   12,483.28x = 17,224.68 × 7,445.62
4. Step 4: Simplify right side
   12,483.28x = 128,248,421.90
5. Step 5: Solve for x
   x = 128,248,421.90/12,483.28
6. Step 6: Final answer
   x = 10,273.62