Finding the Fourth Proportional to 16,557.35, 24,840.81 and 4,870.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,557.35 : 24,840.81 = 4,870.53 : x
2. Step 2: Convert to fraction form
   16,557.35/24,840.81 = 4,870.53/x
3. Step 3: Cross multiply
   16,557.35x = 24,840.81 × 4,870.53
4. Step 4: Simplify right side
   16,557.35x = 120,987,910.33
5. Step 5: Solve for x
   x = 120,987,910.33/16,557.35
6. Step 6: Final answer
   x = 7,307.20