Finding the Fourth Proportional to 11,503.30, 17,216.55 and 8,047.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,503.30 : 17,216.55 = 8,047.30 : x
2. Step 2: Convert to fraction form
   11,503.30/17,216.55 = 8,047.30/x
3. Step 3: Cross multiply
   11,503.30x = 17,216.55 × 8,047.30
4. Step 4: Simplify right side
   11,503.30x = 138,546,742.82
5. Step 5: Solve for x
   x = 138,546,742.82/11,503.30
6. Step 6: Final answer
   x = 12,044.09