Finding the Fourth Proportional to 12,180.29, 18,225.14 and 10,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,180.29 : 18,225.14 = 10,692.50 : x
2. Step 2: Convert to fraction form
   12,180.29/18,225.14 = 10,692.50/x
3. Step 3: Cross multiply
   12,180.29x = 18,225.14 × 10,692.50
4. Step 4: Simplify right side
   12,180.29x = 194,872,164.86
5. Step 5: Solve for x
   x = 194,872,164.86/12,180.29
6. Step 6: Final answer
   x = 15,998.98