Finding the Fourth Proportional to 16,200.10, 24,300.14 and 12,507.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.10 : 24,300.14 = 12,507.72 : x
2. Step 2: Convert to fraction form
   16,200.10/24,300.14 = 12,507.72/x
3. Step 3: Cross multiply
   16,200.10x = 24,300.14 × 12,507.72
4. Step 4: Simplify right side
   16,200.10x = 303,939,347.08
5. Step 5: Solve for x
   x = 303,939,347.08/16,200.10
6. Step 6: Final answer
   x = 18,761.57