Finding the Fourth Proportional to 37,288.72, 51,446.84 and 21,153.38

Step by Step Solution

1. Step 1: Write the proportion equation
   37,288.72 : 51,446.84 = 21,153.38 : x
2. Step 2: Convert to fraction form
   37,288.72/51,446.84 = 21,153.38/x
3. Step 3: Cross multiply
   37,288.72x = 51,446.84 × 21,153.38
4. Step 4: Simplify right side
   37,288.72x = 1,088,274,556.32
5. Step 5: Solve for x
   x = 1,088,274,556.32/37,288.72
6. Step 6: Final answer
   x = 29,185.09