Finding the Fourth Proportional to 37,308.38, 51,469.36 and 21,389.18

Step by Step Solution

1. Step 1: Write the proportion equation
   37,308.38 : 51,469.36 = 21,389.18 : x
2. Step 2: Convert to fraction form
   37,308.38/51,469.36 = 21,389.18/x
3. Step 3: Cross multiply
   37,308.38x = 51,469.36 × 21,389.18
4. Step 4: Simplify right side
   37,308.38x = 1,100,887,405.52
5. Step 5: Solve for x
   x = 1,100,887,405.52/37,308.38
6. Step 6: Final answer
   x = 29,507.78