Finding the Fourth Proportional to 22,187.55, 30,620.06 and 12,116.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,187.55 : 30,620.06 = 12,116.93 : x
2. Step 2: Convert to fraction form
   22,187.55/30,620.06 = 12,116.93/x
3. Step 3: Cross multiply
   22,187.55x = 30,620.06 × 12,116.93
4. Step 4: Simplify right side
   22,187.55x = 371,021,123.62
5. Step 5: Solve for x
   x = 371,021,123.62/22,187.55
6. Step 6: Final answer
   x = 16,722.04