Finding the Fourth Proportional to 12,502.49, 18,768.51 and 5,112.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,502.49 : 18,768.51 = 5,112.45 : x
2. Step 2: Convert to fraction form
   12,502.49/18,768.51 = 5,112.45/x
3. Step 3: Cross multiply
   12,502.49x = 18,768.51 × 5,112.45
4. Step 4: Simplify right side
   12,502.49x = 95,953,068.95
5. Step 5: Solve for x
   x = 95,953,068.95/12,502.49
6. Step 6: Final answer
   x = 7,674.72