Finding the Fourth Proportional to 17,926.84, 26,870.34 and 13,530.04

Step by Step Solution

1. Step 1: Write the proportion equation
   17,926.84 : 26,870.34 = 13,530.04 : x
2. Step 2: Convert to fraction form
   17,926.84/26,870.34 = 13,530.04/x
3. Step 3: Cross multiply
   17,926.84x = 26,870.34 × 13,530.04
4. Step 4: Simplify right side
   17,926.84x = 363,556,775.01
5. Step 5: Solve for x
   x = 363,556,775.01/17,926.84
6. Step 6: Final answer
   x = 20,280.03