Finding the Fourth Proportional to 16,766.72, 25,153.97 and 4,920.01

Step by Step Solution

1. Step 1: Write the proportion equation
   16,766.72 : 25,153.97 = 4,920.01 : x
2. Step 2: Convert to fraction form
   16,766.72/25,153.97 = 4,920.01/x
3. Step 3: Cross multiply
   16,766.72x = 25,153.97 × 4,920.01
4. Step 4: Simplify right side
   16,766.72x = 123,757,696.45
5. Step 5: Solve for x
   x = 123,757,696.45/16,766.72
6. Step 6: Final answer
   x = 7,381.15