Finding the Fourth Proportional to 12,462.84, 18,697.79 and 5,072.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,462.84 : 18,697.79 = 5,072.61 : x
2. Step 2: Convert to fraction form
   12,462.84/18,697.79 = 5,072.61/x
3. Step 3: Cross multiply
   12,462.84x = 18,697.79 × 5,072.61
4. Step 4: Simplify right side
   12,462.84x = 94,846,515.72
5. Step 5: Solve for x
   x = 94,846,515.72/12,462.84
6. Step 6: Final answer
   x = 7,610.34