Finding the Fourth Proportional to 22,089.34, 30,472.55 and 13,130.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,089.34 : 30,472.55 = 13,130.50 : x
2. Step 2: Convert to fraction form
   22,089.34/30,472.55 = 13,130.50/x
3. Step 3: Cross multiply
   22,089.34x = 30,472.55 × 13,130.50
4. Step 4: Simplify right side
   22,089.34x = 400,119,817.78
5. Step 5: Solve for x
   x = 400,119,817.78/22,089.34
6. Step 6: Final answer
   x = 18,113.71