Finding the Fourth Proportional to 19,573.72, 27,011.52 and 10,621.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,573.72 : 27,011.52 = 10,621.42 : x
2. Step 2: Convert to fraction form
   19,573.72/27,011.52 = 10,621.42/x
3. Step 3: Cross multiply
   19,573.72x = 27,011.52 × 10,621.42
4. Step 4: Simplify right side
   19,573.72x = 286,900,698.76
5. Step 5: Solve for x
   x = 286,900,698.76/19,573.72
6. Step 6: Final answer
   x = 14,657.44