Finding the Fourth Proportional to 22,030.28, 30,417.59 and 13,543.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,030.28 : 30,417.59 = 13,543.79 : x
2. Step 2: Convert to fraction form
   22,030.28/30,417.59 = 13,543.79/x
3. Step 3: Cross multiply
   22,030.28x = 30,417.59 × 13,543.79
4. Step 4: Simplify right side
   22,030.28x = 411,969,504.14
5. Step 5: Solve for x
   x = 411,969,504.14/22,030.28
6. Step 6: Final answer
   x = 18,700.15