Finding the Fourth Proportional to 12,150.27, 18,184.10 and 7,705.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.27 : 18,184.10 = 7,705.80 : x
2. Step 2: Convert to fraction form
   12,150.27/18,184.10 = 7,705.80/x
3. Step 3: Cross multiply
   12,150.27x = 18,184.10 × 7,705.80
4. Step 4: Simplify right side
   12,150.27x = 140,122,999.25
5. Step 5: Solve for x
   x = 140,122,999.25/12,150.27
6. Step 6: Final answer
   x = 11,532.50