Finding the Fourth Proportional to 37,043.73, 51,123.06 and 21,128.58

Step by Step Solution

1. Step 1: Write the proportion equation
   37,043.73 : 51,123.06 = 21,128.58 : x
2. Step 2: Convert to fraction form
   37,043.73/51,123.06 = 21,128.58/x
3. Step 3: Cross multiply
   37,043.73x = 51,123.06 × 21,128.58
4. Step 4: Simplify right side
   37,043.73x = 1,080,157,663.05
5. Step 5: Solve for x
   x = 1,080,157,663.05/37,043.73
6. Step 6: Final answer
   x = 29,158.99