Finding the Fourth Proportional to 16,557.59, 24,837.60 and 4,871.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,557.59 : 24,837.60 = 4,871.31 : x
2. Step 2: Convert to fraction form
   16,557.59/24,837.60 = 4,871.31/x
3. Step 3: Cross multiply
   16,557.59x = 24,837.60 × 4,871.31
4. Step 4: Simplify right side
   16,557.59x = 120,991,624.90
5. Step 5: Solve for x
   x = 120,991,624.90/16,557.59
6. Step 6: Final answer
   x = 7,307.32