Finding the Fourth Proportional to 16,216.61, 24,328.55 and 5,123.96

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216.61 : 24,328.55 = 5,123.96 : x
2. Step 2: Convert to fraction form
   16,216.61/24,328.55 = 5,123.96/x
3. Step 3: Cross multiply
   16,216.61x = 24,328.55 × 5,123.96
4. Step 4: Simplify right side
   16,216.61x = 124,658,499.46
5. Step 5: Solve for x
   x = 124,658,499.46/16,216.61
6. Step 6: Final answer
   x = 7,687.09