Finding the Fourth Proportional to 22,090.50, 30,484.89 and 12,154.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,090.50 : 30,484.89 = 12,154.50 : x
2. Step 2: Convert to fraction form
   22,090.50/30,484.89 = 12,154.50/x
3. Step 3: Cross multiply
   22,090.50x = 30,484.89 × 12,154.50
4. Step 4: Simplify right side
   22,090.50x = 370,528,595.51
5. Step 5: Solve for x
   x = 370,528,595.51/22,090.50
6. Step 6: Final answer
   x = 16,773.21