Finding the Fourth Proportional to 19,266.72, 28,897.98 and 13,066.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,266.72 : 28,897.98 = 13,066.56 : x
2. Step 2: Convert to fraction form
   19,266.72/28,897.98 = 13,066.56/x
3. Step 3: Cross multiply
   19,266.72x = 28,897.98 × 13,066.56
4. Step 4: Simplify right side
   19,266.72x = 377,597,189.55
5. Step 5: Solve for x
   x = 377,597,189.55/19,266.72
6. Step 6: Final answer
   x = 19,598.42