Finding the Fourth Proportional to 19,266.72, 28,898.01 and 13,066.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,266.72 : 28,898.01 = 13,066.53 : x
2. Step 2: Convert to fraction form
   19,266.72/28,898.01 = 13,066.53/x
3. Step 3: Cross multiply
   19,266.72x = 28,898.01 × 13,066.53
4. Step 4: Simplify right side
   19,266.72x = 377,596,714.61
5. Step 5: Solve for x
   x = 377,596,714.61/19,266.72
6. Step 6: Final answer
   x = 19,598.39