Finding the Fourth Proportional to 12,603, 18,900.48 and 4,167.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,603 : 18,900.48 = 4,167.94 : x
2. Step 2: Convert to fraction form
   12,603/18,900.48 = 4,167.94/x
3. Step 3: Cross multiply
   12,603x = 18,900.48 × 4,167.94
4. Step 4: Simplify right side
   12,603x = 78,776,066.61
5. Step 5: Solve for x
   x = 78,776,066.61/12,603
6. Step 6: Final answer
   x = 6,250.58