Finding the Fourth Proportional to 12,200.09, 16,837.31 and 7,487.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.09 : 16,837.31 = 7,487.45 : x
2. Step 2: Convert to fraction form
   12,200.09/16,837.31 = 7,487.45/x
3. Step 3: Cross multiply
   12,200.09x = 16,837.31 × 7,487.45
4. Step 4: Simplify right side
   12,200.09x = 126,068,479.32
5. Step 5: Solve for x
   x = 126,068,479.32/12,200.09
6. Step 6: Final answer
   x = 10,333.41