Finding the Fourth Proportional to 16,618.42, 24,931.95 and 4,931.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,618.42 : 24,931.95 = 4,931.38 : x
2. Step 2: Convert to fraction form
   16,618.42/24,931.95 = 4,931.38/x
3. Step 3: Cross multiply
   16,618.42x = 24,931.95 × 4,931.38
4. Step 4: Simplify right side
   16,618.42x = 122,948,919.59
5. Step 5: Solve for x
   x = 122,948,919.59/16,618.42
6. Step 6: Final answer
   x = 7,398.35