Finding the Fourth Proportional to 12,126.52, 16,736.89 and 7,591.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,126.52 : 16,736.89 = 7,591.31 : x
2. Step 2: Convert to fraction form
   12,126.52/16,736.89 = 7,591.31/x
3. Step 3: Cross multiply
   12,126.52x = 16,736.89 × 7,591.31
4. Step 4: Simplify right side
   12,126.52x = 127,054,836.74
5. Step 5: Solve for x
   x = 127,054,836.74/12,126.52
6. Step 6: Final answer
   x = 10,477.44