Finding the Fourth Proportional to 37,021.59, 51,082.65 and 21,105.63

Step by Step Solution

1. Step 1: Write the proportion equation
   37,021.59 : 51,082.65 = 21,105.63 : x
2. Step 2: Convert to fraction form
   37,021.59/51,082.65 = 21,105.63/x
3. Step 3: Cross multiply
   37,021.59x = 51,082.65 × 21,105.63
4. Step 4: Simplify right side
   37,021.59x = 1,078,131,510.32
5. Step 5: Solve for x
   x = 1,078,131,510.32/37,021.59
6. Step 6: Final answer
   x = 29,121.70