Finding the Fourth Proportional to 19,574.00, 27,012.31 and 10,621.58

Step by Step Solution

1. Step 1: Write the proportion equation
   19,574.00 : 27,012.31 = 10,621.58 : x
2. Step 2: Convert to fraction form
   19,574.00/27,012.31 = 10,621.58/x
3. Step 3: Cross multiply
   19,574.00x = 27,012.31 × 10,621.58
4. Step 4: Simplify right side
   19,574.00x = 286,913,250.03
5. Step 5: Solve for x
   x = 286,913,250.03/19,574.00
6. Step 6: Final answer
   x = 14,657.88