Finding the Fourth Proportional to 37,043.56, 51,119.59 and 21,128.28

Step by Step Solution

1. Step 1: Write the proportion equation
   37,043.56 : 51,119.59 = 21,128.28 : x
2. Step 2: Convert to fraction form
   37,043.56/51,119.59 = 21,128.28/x
3. Step 3: Cross multiply
   37,043.56x = 51,119.59 × 21,128.28
4. Step 4: Simplify right side
   37,043.56x = 1,080,069,011.01
5. Step 5: Solve for x
   x = 1,080,069,011.01/37,043.56
6. Step 6: Final answer
   x = 29,156.73