Finding the Fourth Proportional to 12,470.39, 17,203.71 and 8,216.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,470.39 : 17,203.71 = 8,216.00 : x
2. Step 2: Convert to fraction form
   12,470.39/17,203.71 = 8,216.00/x
3. Step 3: Cross multiply
   12,470.39x = 17,203.71 × 8,216.00
4. Step 4: Simplify right side
   12,470.39x = 141,345,595.34
5. Step 5: Solve for x
   x = 141,345,595.34/12,470.39
6. Step 6: Final answer
   x = 11,334.49