Finding the Fourth Proportional to 12,275.30, 16,939.86 and 7,495.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,275.30 : 16,939.86 = 7,495.22 : x
2. Step 2: Convert to fraction form
   12,275.30/16,939.86 = 7,495.22/x
3. Step 3: Cross multiply
   12,275.30x = 16,939.86 × 7,495.22
4. Step 4: Simplify right side
   12,275.30x = 126,967,977.47
5. Step 5: Solve for x
   x = 126,967,977.47/12,275.30
6. Step 6: Final answer
   x = 10,343.37